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Supreme Court of India

NABHA POWER LIMITED & ANR.versusPUNJAB STATE POWER COROPORATION LIMITED & ANR.

Citation
2024 INSC 833
Decided
5 November 2024
Disposal
Dismissed

Holding

The 01‑Oct‑2009 press release is not law under Clause 1.1; the change in law occurred only on 11‑Dec‑2009/14‑Dec‑2009, so the appellant’s claim of a change in law on 01‑Oct‑2009 fails.

Summary

The appellants, Nabha Power Ltd. and its associate, bid for a mega‑power project under a Request for Proposal (RFP) that required bidders to consider the law as defined in Clause 1.1 of the Power Purchase Agreement (PPA). They argued that a press release dated 01‑Oct‑2009 announcing Cabinet approval of modifications to the Mega Power Policy constituted a change in law, allowing them to factor fiscal benefits into their bid. The respondents, Punjab State Power Corporation, contended that the press release was merely a proposal and that the actual legal change occurred only with the customs notification of 11‑Dec‑2009 and the revised policy memorandum of 14‑Dec‑2009. The Supreme Court examined the definition of “law” in the contract, the statutory requirement for notifications under the Customs Act, and principles of contract interpretation. It held that the press release did not meet the legal criteria of an “order” or “law” and that the change in law took effect only on the later notifications. Consequently, the appellant’s claim of a change in law on 01‑Oct‑2009 was rejected and the appeal dismissed.

Issues considered

  • The press release of 01‑Oct‑2009, announcing Cabinet approval of modifications to the Mega Power Policy, whether it falls within the definition of “law” under Clause 1.1 of the Request for Proposal/Power Purchase Agreement.
  • Whether a change in law occurred on 01‑Oct‑2009 or only on the subsequent customs notification of 11‑Dec‑2009 and the revised Mega Power Policy memorandum of 14‑Dec‑2009.
  • The applicability of the “change in law” provisions of Article 13 of the PPA to the appellant’s claim for tariff adjustment.

Legislation cited

Subjects

Press release of 01.10.2009Mega power policyLaw as defined in Clause 1.1 of Request For Proposal/Power Purchase AgreementRequest For ProposalPower Purchase AgreementMega Power Policy of 2006Change in lawNotification dated 01.03.2002Tariff‑based bidding processProcurement of power from power stationSuccessful bidderModification of Mega Power PolicyAmendment to Notification dated 11.12.2009Thermal plantInter‑State thermal plantRevised Mega Power PolicyEssentiality CertificateCustoms duty exemptions

Judgment

                 [2024] 11 S.C.R. 445 : 2024 INSC 833

                    Nabha Power Limited & Anr.
                                v.
           Punjab State Power Coroporation Limited & Anr.
                      (Civil Appeal No. 8478 of 2014)
                            05 November 2024
                [B.R. Gavai, Prashant Kumar Mishra
                    and K.V. Viswanathan,* JJ.]

                          Issue for Consideration
       Issue arose as to whether the press release of 01.10.2009
       announcing the decision of the Union Cabinet about approval of
       certain modifications envisaged in the then existing mega power
       policy, is covered within the meaning of the expression “law as
       defined in Clause 1.1 of the Request For Proposal-RFP/Power
       Purchase Agreement-PPA and if so did the extant legal regime as
       on 01.10.2009 undergo a change from the said date.

                                Headnotes†
       Electricity Act, 2003 – s. 63 – Customs Act – s. 25 – Mega Power
       Policy of 2006 – Press release 01.10.2009 – Effect – Change
       in law, when – Notification dated 01.03.2002 whereby goods
       imported for setting up a Mega Power Project granted certain
       exemptions from customs duty – Issuance of Request For
       Proposal (RFP) by appellant no. 1 for selection of developers
       through tariff-based bidding process for procurement of
       power from the power station to be set up – Second appellant
       emerged as successful bidder – Meanwhile issuance of Press
       Release of 1.10.2009 under the heading “Modification of Mega
       Power Policy” – Thereafter, on 11.12.2009, an amendment
       to Notification dated 01.03.2002 issued – Entry 400 from
       the notification of 2002 was substituted wherein there
       was no reference to the thermal plant being an inter-State
       thermal plant – Thereafter, on 14.12.2009, issuance of office
       memorandum under the subject “revised Mega Power Policy”–
       Power purchase agreement between the appellants and the
       respondent – Series of correspondences ensued regarding
       the issuance of Essentiality Certificate to allow customs duty
       exemptions based on the amended entry in the notification

* Author
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       dated 11.12.2009 – Disputes between the parties regarding
       the passing on the benefits – Appellant’s case, that with the
       press release on 01.10.2009, a new legal regime commences
       and on that basis, the appellant in its bid of 09.10.2009
       factored the altered position including the fiscal benefits due
       to customs duty exemptions – Respondent’s case that the
       press release of 01.10.2009 only sets out the proposal for
       modification and the real modification happened on 11.12.2009
       and 14.12.2009; and since the change of law having happened
       on 11.12.2009/14.12.2009 the benefits that have accrued to the
       appellant ought to be passed on:
       Held: 01.10.2009 Press Release not law under Clause 1.1 of the
       PPA – Press release did not alter/amend/repeal the existing law
       as on 01.10.2009 – It was at best the announcement of a proposal
       approved by the Cabinet which had to be given shape after fulfilment
       of the conditions mentioned therein – Notifications constituting
       change in law happened on 11.12.2009 and 14.12.2009 and thus
       no basis in the contention that on 01.10.2009 the old legal regime
       had given way – Press release of 01.10.2009 certainly does not fulfil
       the meaning of the word “order” as understood in legal parlance –
       Press Release with all its future eventualities and conditionalities is
       only a proposal and it is only after the undertakings were agreed to
       be given by the State Government that a final shape was given in
       the form of a customs notification on 11.12.2009 and by the policy
       document of 14.12.2009 – Press release announcing the cabinet
       approval of certain modifications envisaged in the existing Mega
       Power Policy is not law as defined in Clause 1.1 – Change in law
       occurred only on 11.12.2009/14.12.2009, and the respondent no. 1
       rightly held entitled to the benefits, which ultimately would go to
       the consumers – Words of clause 13.1.1 read with the definition
       of law in Clause 1.1 are plain and clear – For a change in law to
       occur, the certain events ought to have happened seven days prior
       to the bid deadline – Law, as it stood prior to the press release
       of 01.10.2009 insofar as the financial implications for the matter is
       concerned, was the notification issued on 01.03.2002 and entry 400
       thereof – That notification, subject to the conditions mentioned
       thereon in entry 400 granted exemption from customs duty for
       import of goods required for setting up of any Mega Power project
       if such Mega Power project was an inter-State power plant and if
       it fulfilled the other conditions mentioned in the notification – For
       an exemption under the Customs Act to operate thereon there has
[2024] 11 S.C.R.                                                              447

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     to be a notification issued in the manner provided by the Customs
     Act and duly published in the official gazette – There was no duly
     constituted amendment notifications as on 01.10.2009 – Thus,
     interference with the concurrent judgments of courts below not
     called for. [Paras 43, 45, 50, 51, 55, 64, 71]
     Electricity laws – Mega Power Policy – Press release
     of 01.10.2009, under the heading “Modification of Mega Power
     Policy”, if ordained a new legal regime:
     Held: Press release is a summary of the Cabinet decision – Press
     release makes it clear that it was a proposal that was envisaged and
     which was to come into force in future – Certainty is the hallmark
     of law, one of the essential attributes and an integral component
     of the rule of law – What was certain on 01.10.2009 was only the
     prevalent customs notification of 01.03.2002, duly notified and
     gazetted as well as the Mega Power Policy document promulgated
     on 07.08.2006 – Press release summarizing the Cabinet decision
     and beset with several conditions created no vested rights on any
     party to the power purchase agreement vis-a-vis the other party
     on 01.10.2009 – In fact, the press release itself contemplated certain
     contingencies – Right vests when all the facts have occurred which
     must by law occur in order for the person in question to have the
     right – It is only when the right vests will there be a co-relative
     duty on the other as far as nature of the right involved – Clauses
     in the Request For Proposal obligate the bidder to satisfy itself
     about the extant legal regime and those clauses cannot operate as
     a crutch to elevate the press release of 01.10.2009 to the status
     of law u/Clause 1.1. [Paras 57-59, 63-65]
     Interpretation – Interpretation of contract – Golden rule of
     interpretation – Business efficacy test – Invocation of:
     Held: Words of a contract should be construed in their grammatical
     and ordinary sense, except to the extent that some modification is
     necessary in order to avoid absurdity, inconsistency or repugnancy –
     Similarly, any invocation of the business efficacy test would arise
     only if the terms of the contract are not explicit and clear – Business
     efficacy test cannot contradict any express term of the contract
     and is invoked only if by a plain and literal interpretation of the
     term in the agreement or the contract, it is not possible to achieve
     the result or the consequence intended by the parties acting as
     prudent businessmen. [Para 41]
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                                Case Law Cited
       Maharashtra State Electricity Distribution Company Limited v. Adani
       Power Maharashtra Limited and Others [2023] 8 SCR 85 : (2023) 7
       SCC 401; Babu Verghese and Others v. Bar Council of Kerala
       and Others [1999] 1 SCR 1121 : (1999) 3 SCC 422 – relied on.
       Uttar Haryana Bijli Vitran Nigam Limited and Another v. Adani
       Power (Mundra) Limited and Another [2023] 4 SCR 1095 :
       (2023) 7 SCC 623; Burn Standard Company Limited v. McDermott
       International INC and Anr. [1991] 2 SCR 67 : (1991) 2 SCC 669 –
       held inapplicable.
       Nabha Power Limited (NPL) v. Punjab State Power Corporation
       Limited (PSPCL) and Another [2017] 14 SCR 301 : (2018) 11
       SCC 508; Adani Power (Mundra) Limited v. Gujarat Electricity
       Regulatory Commission and Others [2019] 8 SCR 1017 : (2019) 19
       SCC 9; Nazir Ahmad v. King Emperor, AIR 1936 PC 253; B.K.
       Srinivasan and Others v. State of Karnataka and Others [1987] 1
       SCR 1054 : (1987) 1 SCC 658; GMR Warora Energy Limited v.
       Central Electricity Regulatory Commission [CERC] and Others
       [2023] 8 SCR 183 : (2023) 10 SCC 401; Energy Watchdog v. Central
       Electricity Regulatory Commission and Others [2017] 3 SCR 153 :
       (2017) 14 SCC 80; Lloyd Electric and Engineering Limited v. State
       of Himachal Pradesh and Others [2015] 10 SCR 362 : (2016) 1
       SCC 560; Bachhittar Singh v. The State of Punjab [1962] Supp. 3
       SCR 713 – referred to.
       Taylor vs. Taylor (1875) 1 C h D 426 – referred to.
                        Books and Periodicals Cited
       Kim Lewison, The interpretation of Contracts, 3rd Edition; Black’s
       Law Dictionary; Salmond on Jurisprudence, Twelfth Edition P.J.
       Fitzgeral page 245; Lord Bingham of Cornhill in his locus classicus
       ‘The Rule of Law’.
                                  List of Acts
       Electricity Act, 2003; Customs Act, 1962; General Clauses Act, 1897.
                               List of Keywords
       Press release of 01.10.2009; Mega power policy; Law as
       defined in Clause 1.1 of Request For Proposal/Power Purchase
       Agreement; Request For Proposal; Power Purchase Agreement;
       Mega Power Policy of 2006; Change in law; Notification
       dated 01.03.2002; Tariff- based bidding process; Procurement
[2024] 11 S.C.R.                                                           449

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     of power from power station; Successful bidder; Modification of
     Mega Power Policy; Amendment to Notification dated 01.03.2002;
     Thermal plant; Inter-State thermal plant; Revised Mega Power
     Policy; Essentiality Certificate; Customs duty exemptions;
     Notification dated 11.12.2009; Fiscal benefits; Word “order”; Enact,
     adopt, promulgate, amend, modify or repeal any existing law or
     bring into effect any law; Legal regime; Continuing legal regime;
     Change in cost with the reduction of customs duty; Press release;
     Cabinet decision; Certainty, hallmark of law; Rule of law; Vested
     rights; Business efficacy test; Interpretation of contract; Golden
     rule of interpretation.
                            Case Arising From
     CIVIL APPELLATE JURISDICTION : Civil Appeal No. 8478 of 2014
     From the Judgment and Order dated 30.06.2014 of the Appellate
     Tribunal for Electricity, New Delhi in Appeal No. 29 of 2013
                         Appearances for Parties
     C.S. Vaidyanathan, ANS Nadkarni, Dama Sheshadari Naidu, Arvind
     Datar, Sr. Advs., Mahesh Agarwal, Shri Venkatesh, Rohan Talwar,
     Shashwat Singh, Avishkar Singhvi, Ms. Priya Dhankar, Keshav
     Dhingra, Salvador Santosh Rebello, Ms. Deepti Arya, Ms. Arzu
     Paul, Naved Ahmed, Nikunj Bhatnagar, Adarsh Singh, Rishikesh
     Haridas, Ms. Himanshi Nagpal, Ms. Manisha Gupta, Siddharth
     Nigotia, Yanthanshan, Siddharth Nigotia, E.C. Agrawala, Bharat Vinod
     Sharma, Vishrov Mukerjee, Pratyush Singh, Yashaswi Kant, Girik
     Bhalla, Raghav Malhotra, Ms. Juhisenguttuvan (for M/s. Trilegal),
     Advs. for the Appellants.
     Balbir Singh, A.S.G., M.G. Ramachandran, Sr. Adv., K. V. Mohan,
     Mrs. Poorva Saigal, Shubham Arya, Mrs. Pallavi Saigal, Devyanshu
     Sharma, Ms. Shirin Gupta, Sakesh Kumar, Ms. Gitanjali N Sharma,
     Ms. Alpha M. Prasad, Ms. Anuradha Mutatkar, Ms. Sunieta Ojha,
     Ms. Gargi Kumar, Advs. for the Respondents.
                Judgment / Order of the Supreme Court
                                 Judgment
     K.V. Viswanathan, J.
1.   The present appeal arises from the judgment dated 30.06.2014 of
     the Appellate Tribunal for Electricity (for short the “APTEL”) in Appeal
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       No. 29 of 2013. By the said judgement, the APTEL dismissed the
       appeal of the appellant and confirmed the order dated 12.11.2012
       of the Punjab State Electricity Regulatory Commission (for short
       the “State Commission”), insofar as issue no. 1 discussed therein
       was concerned. That issue concerned the aspect of Mega Power
       Policy and the effect of the Press Release of 01.10.2009. We are
       only concerned with the said issue in this Appeal.
       FACTS OF THE CASE: -
       A)   Customs Notification No. 21/2002 dated 01.03.2002.
2.     To appreciate the issues involved, certain background facts need
       to be set out. Goods imported for setting up a Mega Power Project
       had, under a notification issued under Section 25 of the Customs Act
       dated 01.03.2002, been granted certain exemptions from customs
       duty. It will be useful to set out the relevant part of the 01.03.2002
       notification.
            “Exemption and effective rates of basic and additional
            duty for specified goods of Chapters 1 to 99. - In
            exercise of the powers conferred by sub-section (1) of
            section 25 of the Customs Act, 1962 (52 of 1962) and
            in supersession of the notification of the Government of
            India in the Ministry of Finance (Department of Revenue),
            No. 17 /2001- Customs, dated the 1st March, 2001
            [G.S.R. 116(E), dated the 1st March, 2001], the Central
            Government, being satisfied that it is necessary in the
            public interest so to do, hereby exempts the goods of the
            description specified in column (3) of the Table below or
            column (3) of the said Table read with the relevant List
            appended hereto, as the case may be, and falling within the
            Chapter, heading or sub-heading of the First Schedule to
            the Customs Tariff Act, 1975 (51 of 1975) as are specified
            in the corresponding entry in column (2) of the said Table,
            when imported into India, -
            (a) from so much of the duty of customs leviable thereon
            under the said First Schedule as is in excess of the amount
            calculated at the rate specified in the corresponding entry
            in column (4) of the said Table;
[2024] 11 S.C.R.                                                               451

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

          (b) from so much of the additional duty leviable thereon
          under sub-section (1) of section 3 of the said Customs
          Tariff Act, as is in excess of the rate specified in the
          corresponding entry in column (5) of the said Table,
          Subject to any of the conditions, specified in the Annexure
          to this notification, the condition No. of which is mentioned
          in the corresponding entry in column (6) of the said Table :

           S. Chapter or Description of         Standard Additional Condition
           No. Heading   goods                  rate     dduty rate no.
               No. or
               sub-
               heading
               No.
           400 98.01      Goods required Nil             Nil        86
                          for setting up of
                          any Mega Power
                          Project specified
                          in List 42, if such
                          Mega Power
                          Project is –
                          (a) an inter-
                          State thermal
                          power plant of a
                          capacity of 1000
                          MW or more; or
                          (b) an inter-State
                          hydel power plant
                          of a capacity of
                          500 MW or more,
                          as certified by an
                          officer not below
                          the rank of a Joint
                          Secretary to the
                          Government
                          of India in the
                          Ministry of Power

          86. (a) If an officer not below the rank of a Joint Secretary
          to the Government of India in the Ministry of Power certifies
          that-
          (i)   the power purchasing State has constituted the
                Regulatory Commission with full powers to fix tariffs;
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            (ii)    the power purchasing State undertakes, in principle,
                    to privatise distribution in all cities, in that State, each
                    of which has a population of more than one million,
                    within a period to be fixed by the Ministry of Power; and
            (iii) the power purchasing State has agreed to provide
                  recourse to that State’s share of Central Plan
                  allocations and other devolutions towards discharge
                  of any outstanding payment in respect of purchase
                  of power;
            (b) In the case of imports by a Central Public Sector
            Undertaking, the quantity, total value, description and
            specifications of the imported goods are certified by the
            Chairman and Managing Director of the said Central Public
            Sector Undertaking; and
            (c) In the case of imports by a Private Sector Project, the
            quantity, total value, description and specifications of the
            imported goods are certified by the Chief Executive Officer
            of such project.”
       B)   Mega Power Policy of 2006
3.     On 10.06.2009, when competitive bidding was initiated by the
       respondent, what was in vogue was the Mega Power Policy, 2006.
       If a thermal plant was covered as a Mega Power Project under the
       Mega Power Policy of 2006, it was entitled to the benefit of certain
       exemptions under the customs notification dated 01.03.2002 extracted
       hereinabove.
4.     The Mega Power Policy, 2006 prescribed the following conditions to
       be fulfilled by the developer for grant of mega power status:-
                   “MEGA POWER PROJECTS: REVISED POLICY
                               GUIDELINES
            The following conditions are required to be fulfilled by the
            developer for grant of mega project status:-
            (a)     an inter-state thermal power plant of a capacity of
                    700 MW or more, located in the States of Jammu
                    and Kashmir, Sikkim, Arunachal Pradesh, Assam,
                    Meghalaya, Manipur, Mizoram, Nagaland and
                    Tripura; or
[2024] 11 S.C.R.                                                               453

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

          (b)    an inter-state thermal power plant of a capacity of
                 1000 MW or more, located in States other than those
                 specified in clause (a) above; or
          (c)    an inter-state hydel power plant of a capacity of
                 350 MW or more, located in the States of Jammu
                 and Kashmir, Sikkim, Arunachal Pradesh, Assam,
                 Meghalaya, Manipur, Mizoram, Nagaland and
                 Tripura; or
          (d)    an inter-state hydel power plant of a capacity of
                 500 MW or more, located in States other than those
                 specified in clause (a) above.
          Fiscal concessions/benefits available to the Mega Power
          Projects
          Zero Customs Duty: In terms of the notification of the
          Government of India in the Ministry of Finance (Department
          of Revenue) No.21/2002-Customs dated 1st March, 2002
          read together with No.49/2006-Customs dated 26th May,
          2006, the import of capital equipment would be free of
          customs duty for these projects.
          Deemed Export Benefits: Under Chapter 8(f) of the
          Foreign Trade Policy, Deemed Export Benefits is available
          to domestic bidders for projects both under public and
          private sector on following the stipulations prescribed
          therein.
          Pre-conditions for availing the benefits: Goods required
          for setting up of any mega power project, qualify for the
          above fiscal benefits after it is certified by an officer not
          below the rank of a Joint Secretary to the Govt. of India
          in the Ministry of Power that-
          (i)    the power purchasing States have constituted the
                 Regulatory Commissions with full powers to fix tariffs;
          (ii)   the power purchasing States undertakes, in principle,
                 to privatize distribution in all cities, in that State, each
                 of which has a population of more than one million,
                 within a period to be fixed by the Ministry of Power.
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            Price preference to domestic PSUs bidders: In order to
            ensure that domestic bidders are not adversely affected,
            price preference of 15% would be given for the projects
            under public sector. The domestic bidders would be allowed
            to quote in US Dollars or any other foreign currency of
            their choice.
            Income Tax benefits: In addition, the income-tax holiday
            regime as per Section 80-IA of the Income Tax Act 1961
            can also be availed.”
       What is important is the phrase “Inter-State Thermal Power Plant”
       employed in the policy.
       C)   Request For Proposal
5.     It was when this legal regime was in force that on 10.06.2009, the
       erstwhile Punjab State Electricity Board [now after unbundling-the
       distribution being known as Punjab State Power Corporation Limited
       (PSPCL)] through its then wholly owned subsidiary and a special
       purpose vehicle, appellant no. 1-Nabha Power Limited issued a
       Request For Proposal (RFP). The RFP was for selection of developers
       through tariff-based bidding process under Section 63 of the Electricity
       Act 2003, for procurement of power on long-term basis from the
       power station to be set up at village Nalash, near Rajpura, District
       Patiala, Punjab. This was as per the Guidelines for Determination of
       Tariff by Bidding Process for Procurement of Power by Distribution
       Licencees issued by the Ministry of Power, Government of India. In
       terms of RFP, the bidders were required to quote the Capacity Charge
       (i.e. capital cost component) and Station Heat Rate (i.e. amount of
       heat required by the plant to generate one unit of electrical energy/
       efficiency of the plant) to convert the heat energy for the project and
       based on these components, a levelized tariff for each bidder was
       to be worked out. The bidder with the lowest levelized tariff was to
       be selected for the development of the project.
6.     The term- “Successful Bidder or Selected Bidder” was to mean that
       the bidder selected pursuant to the RFP to set up the project and
       supply electrical output therefrom to the Procurer through the Seller
       as per the terms of the power purchase agreement (PPA) and other
       RFP project documents. Under Clause 2.7.2.1 and 2.7.2.2, the bidder
       was to make an independent enquiry and satisfy itself with respect
[2024] 11 S.C.R.                                                            455

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     to all the required information, inputs, conditions and circumstances
     and factors that may have any effect on the bid. Under the said
     clauses, it was deemed that while submitting the bid, the bidder was
     to have inspected and examined the site conditions, the laws and
     regulations in force. The bidder was to acknowledge that on being
     selected as the successful bidder and on acquisition of the special
     purpose vehicle (the seller) the seller shall not be relieved from any
     of its obligations under the RFP project documents nor shall the seller
     be entitled for any extension of time or financial compensation by
     reason of the unsuitability of the site. Clauses 2.7.2.1 and 2.7.2.2
     read as under.
          “2.7.2.1 The Bidder shall make independent enquiry and
          satisfy itself with respect to all the required information,
          inputs, conditions and circumstances and factors that
          may have any effect on his Bid. While submitting the
          Bid the Bidder shall be deemed to have inspected and
          examined the site conditions (including but not limited to its
          surroundings, its geological condition, the adequacy of the
          road and rail links to the Site and the availability of adequate
          supplies of water), examined the laws and regulations
          in force in India, the transportation facilities available in
          India, the grid conditions, the conditions of roads, bridges,
          ports, etc. for unloading and/or transporting heavy pieces
          of material and has based fts design, equipment size
          and fixed its price taking into account all such relevant
          conditions and also the risks, contingencies and other
          circumstances which may influence or affect the supply
          of power. Accordingly, the Bidder acknowledges that, on
          being selected as Successful Bidder and on acquisition
          of the Seller, the Seller shall not be relieved from any of
          its obligations under the RFP Project Documents nor shall
          the Seller be entitled to any extension of time or financial
          compensation by reason of the unsuitability of the Site
          for whatever reason.
          2.7.2.2 In their own interest, the Bidders are requested
          to familiarize themselves with the Electricity Act, 2003,
          the Income Tax Act 1961, the Companies Act, 1956, the
          Customs Act, the Foreign Exchange Management Act,
          IEGC, the regulations framed by regulatory commissions
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            and all other related acts, laws, rules and regulations
            prevalent in India. The Procurer/Authorised Representative
            shall not entertain any request for clarifications from the
            Bidders regarding the same. Non-awareness of these laws
            or such information shall not be a reason for the Bidder
            to request for extension of the Bid Deadline. The Bidder
            undertakes and agrees that before submission of its Bid all
            such factors, as generally brought out above, have been
            fully investigated and considered while submitting the Bid.”
       Press Release of 1.10.2009
7.     When the matter stood thus, a Press Release was issued by the
       Press Information Bureau, Government of India under the heading
       “Modification of Mega Power Policy”. It will be safer to extract the
       entire Press Release as this is the fulcrum on which the entire case
       of the appellant revolves. The Press Release with certain portions
       emphasized by us, is extracted hereinbelow:
                       “PRESS INFORMATION BUREAU
                          GOVERNMENT OF INDIA
                                                      Press Release
                                          Thursday, October 01, 2009
                      Modification of Mega Power Policy
            The Union Cabinet today approved modifications in the
            existing mega power policy. This would encourage setting
            up of mega power plants to take advantage of economies
            of scale and improve their viability. It will simplify the
            procedure for grant of mega certificate and encourage
            capacity addition. It will also encourage technology transfer
            and indigenous manufacturing in the field of super critical
            power equipments.
            The mega Power Policy was introduced in November 1995
            for providing impetus to development of large size power
            projects in the country and derive benefit from economies
            of scale. These guidelines were modified in 1998 and
            2002 and was last amended in April 2006 to encourage
            power development in Jammu & Kashmir and the North
            Eastern region.
[2024] 11 S.C.R.                                                         457

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

          In order to rationalize the Mega Power Policy and bring
          it in consonance with the National Electricity Policy 2005
          and Tariff Policy 2006, the following modifications of the
          existing Mega Power Policy have been envisaged:
          (i) The existing condition of privatization of distribution
          by power purchasing states would be replaced by the
          condition that power purchasing states shall undertake to
          carry out distribution reforms as laid down by the Ministry
          of Power.
          (ii) The conditions requiring inter-state sale of power for
          getting mega power status would be removed.
          (iii) The present dispensation of 15% price preference
          available to the domestic bidders in case of cost plus
          projects of PSUs would continue. However, the price
          preference will not apply to tariff based competitively bid
          projects of PSUs. A Committee would be set up under
          the Planning Commission, with DHI, MoP and DoR as
          members which would suggest options and modalities to
          take care of the disadvantages suffered by the domestic
          industry related to power sector keeping all factors in view.
          (iv) The benefits of Mega Power Policy will also be extended
          to supercritical projects to be awarded through ICB with the
          mandatory condition of setting up indigenous manufacturing
          facility provided they meet the eligibility criteria.
          (v) The requirement of undertaking international competitive
          bidding (ICB) by the developers for procurement of
          equipment for mega power projects would not be
          mandatory, if the requisite quantum of power has been tied
          up through tariff based competitive bidding or the project
          has been awarded through tariff based competitive bidding.
          (vi) A basic custom duty of 2.5% only would be applicable
          on brown field expansion of existing mega projects. All
          other benefits under mega power policy available to
          Greenfield projects would also be available to expansion
          unit(s) (Brownfield projects) even if the total capacity of
          expansion unit(s) is less than the threshold qualifying
          capacity, provided the size of the unit(s) is not less than
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            that provided in the earlier phase of the project granted
            mega power project certificate. All other conditions for
            grant to the mega power status shall remain the same.
            (vii) Mega Power Projects would be required to tie up power
            supply to the distribution companies/utilities through long
            term PPA(s) and may also sell power outside long term
            PPA(s) in accordance with the National Electricity Policy
            2005 and Tariff Policy 2006, as amended from time to
            time, of Government of India.”
                                                  (Emphasis supplied)
       The Cabinet decision, as such, is not on record and admittedly what
       is available is the Press Release issued by the Press Information
       Bureau.
8.     The final bidding date was on 09.10.2009 and as per clause 13.1
       from the Format-1 Annexure-3 annexed to the RFP, 02.10.2009 was
       the cutoff date for consideration of change in law. Equally, under
       clause 2.5.3, 25.09.2009 was the last date for seeking clarification.
       Law is defined in Clause 1.1.
       D)   BID RESULTS
9.     The second appellant L&T Power Development Limited emerged as
       the successful bidder and a Letter of Intent was issued on 19.11.2009
       and the L&T Power Development Limited acquired the first appellant.
       The appellant contends that on 02.10.2009, the second appellant
       had addressed a letter to Nabha (then owned by the respondent)
       requesting an extension of the bid deadline to enable them to go
       through the changes pursuant to the Press Release of 01.10.2009
       and ascertain the impact of the bid. It was followed up with a
       letter of 06.10.2009 setting out that the appellant had taken into
       consideration the benefits associated with the mega power status in
       evaluation of their project. According to the appellant, it was forced
       to withdraw the letter before submitting the bid. According to the
       respondent that letters were extraneous to the bid and were not
       entertained.
       E)   Developments in December, 2009
10. Certain rapid developments happened in December, 2009.
    On 3rd December, 2009, the Government of India in the Ministry of
[2024] 11 S.C.R.                                                          459

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     Power addressed a letter to all the Principal Secretary/Secretary
     Energy of all the States/Union Territories under the subject “Distribution
     reforms under the modified Mega Power Policy”. It was set out in
     the letter that in order to further liberalize the Mega Power Policy
     as issued on 2nd August, 2006 and also remove such provisions
     which had lost relevance, Government has made modifications in
     the Mega Power Policy and the revised policy guideline was being
     issued separately. It set out that one of the decisions taken in this
     regard was that the existing condition of privatization of distribution
     by power purchasing States would be replaced by the condition that
     power purchasing States were to undertake to carry out distribution
     reforms as laid down by the Ministry of Power. The letter proceeded
     to State that in this regard the matter was examined in the Ministry
     of Power and a follow up meeting was held on 28th October, 2009
     with the representatives of State Power Departments. It was set out
     that in the said meeting various measures for distribution reforms
     that could be taken up by the State Governments were discussed
     in detail and the letter annexed the summary of the minutes of the
     meeting of 28.10.2009. An undertaking was to be taken from the
     States in a prescribed format and the operative portion of the letter,
     which is crucial, is extracted hereinbelow:
          “Accordingly, in pursuance of the Cabinet decision
          dated 1st October 2009 on the modification to the Mega
          Power Policy, following four distribution reform measures
          hereby laid down by the Ministry of Power required to
          be undertaken by the states purchasing power from the
          mega power projects:
          a)    Timely release of subsidy as per Section 65 of
                Electricity Act 2003.
          b)    Ensure that Discoms approach SERC for approval
                of annual revenue requirement/tariff determination in
                time according to the SERC regulations.
          c)    Setting up special courts as provided in the Electricity
                Act 2003 to tackle related cases.
          d)    Ring fencing of SLDCs.
          An undertaking in the enclosed format (Annexure- II) may
          be given to the Ministry of Power. The said undertaking
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            needs to be given at least, once and would be considered
            in all the cases where the concerned State Distribution
            Utility ties up procurement of power from a power project
            considered for grant of mega power state.
            Receipt of this communication may please be acknowledged
            and the undertaking in the enclosed format may be sent
            to this Ministry at the earliest to facilitate processing of
            the Mega Power Policy case(s).”
       F)   Amendment to the Customs Notification dated 11.12.2009
11. Thereafter, on 11.12.2009, an amendment to the customs notification
    no. 21 of 2002 dated 01.03.2002 was issued. The notification is
    extracted hereinbelow.
            “In exercise of the powers conferred by sub-section (1)
            of section 25 of the Customs Act 1962 (52 of 1962), the
            Central Government, on being satisfied that it is necessary
            in the public interest so to do, hereby makes the following
            further amendments in the notification of the Government
            of India in the Ministry of Finance (Department of Revenue)
            No. 21/2002-Customs, dated the 1st March, 2002, which
            was published in the Gazette of India, Extraordinary vide
            number G.S.R. 118(E), dated the 1st March, 2002, namely:-
            In the said notification, -
            A. in the Table,
            (i) against S.No. 400, for the entry in column (3), the
            following entry shall be substituted namely:-
            “Goods required for setting up of any Mega Power Project,
            so certified by an officer not below the rank of a Joint
            Secretary to the Government of India in the Ministry of
            Power, that is to say -
            (a)   a thermal power plant of a capacity of 700 MW or
                  more, located in the States of Jammu and Kashmir,
                  Sikkim, Arunachal Pradesh, Assam, Meghalaya,
                  Manipur, Mizoram, Nagaland and Tripura: or
            (b)   a thermal power plant of a capacity of 1000 MWor
                  more, located in States other than those specified in
                  clause (a) above; or
[2024] 11 S.C.R.                                                        461

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

          (c)   a hydel power plant of a capacity of 350MW or more,
                located in the States of Jammu and Kashmir, Sikkim,
                Arunachal Pradesh, Assam, Meghalaya, Manipur,
                Mizoram, Nagaland and Tripura; or
          (d)   a hydel power plant of a capacity of 500MW or more,
                located in States other than those specified in clause
                (c) above”:
          (ii) after S.No. 400 and the entries relating thereto, the
          following S.No. and entries shall be inserted, namely :-

           1         2   3                             4    5    6
           400A. 9801 Goods required for the 2.5% Nil            86
                      expansion of any existing
                      Mega Power Project so
                      certified by an officer
                      not below the rank of a
                      Joint Secretary to the
                      Government of India in
                      the Ministry of Power.
                         Explanation: for the
                         purposes of this exemption,
                         Mega Power project means
                         a project as defined in S.
                         No. 400 above.
          B. in the Annexure, in Condition No. 86, for sub-clause (ii)
          of clause (a), the following shall be substituted namely:
          (ii) the power purchasing states shall undertake to carry
          out distribution reforms as laid down by Ministry of Power.”
                                                (Emphasis supplied)
12. It will be noticed that entry 400 from the notification of 2002 was
    substituted and in the substituted clause there is no reference to the
    thermal plant being an inter-State thermal plant.
     Mega Power Policy of 14.12.2009
13. Close on the heels, on 14.12.2009, the Government of India and the
    Ministry of Power issued an office memorandum under the subject
    “revised Mega Power Policy”, which reads as under:-
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                        “No. A-118/2003-IPC
                        Government of India
                          Ministry of Power
                   Shram Shakti Bhavan, New Delhi
                     Dated 14th December, 2009
                        OFFICE MEMORANDUM
       Subject : Revised mega power project policy.
       Policy guidelines for setting up of mega power projects
       were last revised and issued vide this Ministry’s letter
       of even number dated 2nd August, 2006. The Government
       of India has modified the Mega Power Policy to smoothen
       the Procedures further. The modified Mega Power Policy
       is as follows:
       (i) The power projects with the following threshold capacity
       shall be eligible for the benefit of mega power policy:
       (a)   A thermal power plant of capacity 1000 MW or more; or
       (b)   A thermal power plant of capacity of 700MW or more,
             located in the States of J & K, Sikkim, Arunachal
             Pradesh, Assam, Meghalaya, Manipur, Mizoram,
             Nagaland and Tripura; or
       (c)   A hydel power plant of capacity of 500 MW or more; or
       (d)   A hydel power plant of a capacity of 350 MW or
             more, located in the States of J&K, Sikkim, Arunachal
             Pradesh, Assam, Meghalaya, Manipur, Mizoram,
             Nagaland and Tripura;
       (e)   Government has decided to extend mega policy
             benefits to brownfield (expansion) projects also.
             In case of the brownfield (expansion) phase of the
             existing mega project, size of the expansion units
             would not be not less than that provided in the earlier
             phase of the project granted mega power project
             certificate.
       (ii) Mandatory condition of Inter-State sale of power for
       getting mega power status has been removed.
[2024] 11 S.C.R.                                                       463

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

          (iii) Goods required for setting up a mega power project,
          would qualify for the fiscal benefits after it is certified
          by an officer not below the rank of a Joint Secretary to
          the Govt. of India in the Ministry of Power that (i) the
          power purchasing States have constituted the Regulatory
          Commissions with full powers to fix tariffs and (ii) power
          purchasing states shall undertake to carry out distribution
          reforms as laid down by Ministry of Power.
          (iv) Mega Power Projects would be required to tie up power
          supply to the distribution companies/utilities through long
          term PPA(s) in accordance with the National Electricity
          Policy 2005 and Tariff Policy 2006, as amended from time
          to time, of Government of India.
          (v) There shall be no further requirement of ICB for
          procurement of equipment for mega projects if the
          requisite quantum of power has been tied up or the
          project has been awarded through tariff based competitive
          bidding as the requirements of ICB for the purpose of
          availing deemed export benefits under Chapter 8 of the
          Foreign Trade Policy would be presumed to have been
          satisfied. In all other cases, ICB for equipments shall be
          mandatory.
          (vi) The present dispensation of 15% price preference
          available to the domestic bidders in case of cost-plus
          projects of PSUs would continue. However, the price
          preference will not apply to tariff based competitively bid
          projects of PSUs.
          3. This issues with the approval of Secretary (Power).
                                                         Sd/-
                                                   (Puneet K Goel)
          To
          Principal Sectary/Secretary/ Energy of all States/UTs.
          Copy to:
          (i) Chairman, CEA,
          (ii) CMDs of all PSUs of MOP
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           Copy for information to :-
           PS to MOP/PS to MOS(P) / PS to Secretary(P) Sr. PPS to
           AS(AK)/ PPS to AS(GBP)/ All Joint Secretaries/ Directors
           in the Ministry of Power, Dir (PIB), MOP.
           Copy also to Cabinet Secretariat, New Delhi
           Copy for putting on website of Ministry of Power to NIC,
           MOP.
                                                                  Sd/-
                                                     (Puneet K Goel)
                                                       Director (IPC)”
                                                (Emphasis Supplied)
14. It will be noticed that the mandatory conditions of inter-State sale of
    power for getting mega power status was removed; it was decided
    that goods required for setting up a Mega Power Project would
    qualify for the fiscal benefits after it is certified by an officer not
    below the rank of a Joint Secretary to the Government of India in
    the Ministry of Power that (i) the Power purchasing States have
    constituted the Regulatory Commissions with full powers to fix
    tariffs and (ii) Power purchasing States shall undertake to carry
    out distribution reforms as laid down by Ministry of Power apart
    from certain other conditions.
       Events Leading to the Dispute
15. The appellant no. 1 Nabha Power Limited, which was now owned
    by appellant no. 2, entered into a Power Purchase Agreement
    on 18.01.2010 with the respondent PSPCL.
16. According to the appellant, thereafter a series of correspondence
    ensued between appellant no. 1 and the respondent with regard to
    the issuance of Essentiality Certificate so that the customs authorities
    allow import at the concessional duty in terms of the amended
    entry 400, in the Notification of 11.12.2009. The appellant has a case
    that apart from the other documents the respondent asked for an
    affidavit indemnifying the respondent against adverse consequences
    arising out of wrong claim of benefits by the appellant and also an
    affidavit stating that the benefits of mega power status granted to
    the appellant project will be passed on to the respondent as per
    clause 13.3 of the PPA.
[2024] 11 S.C.R.                                                           465

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

17. The appellant claims that while it furnished the other documents,
    with regard to the affidavit for passing on the benefits of the mega
    power status, it wrote to the respondent on 17.02.2011 stating
    that it had already factored in the benefits available in view of the
    Cabinet decision dated 01.10.2009 and thereafter there is no basis
    for submission of the affidavit as called for.
18. The respondent replied by its letter of 04.03.2011 and insisted on
    the affidavit as sought for by setting out the following reasons:
           “(i)   at the time of submission of bid, the Mega Policy
                  2006 was in vogue and therefore, the Project could
                  not have qualified as a MPP;
           (ii)   the Mega Policy 2009 was notified on 14.12.2009,
                  post submission of the bids and therefore, the benefits
                  could have only accrued post such notification;
           (iii) the mega power status is granted to a project subject
                 to (a) project getting certified as a MPP from an
                 officer not below the rank of Joint Secretary to the
                 Ministry of Power; (b) the power purchasing States
                 having constituted the Regulatory Commissions with
                 full power to fix tariffs; (c) power purchasing States
                 undertaking to carry out distribution reforms as laid
                 down by the Ministry of Power;
           (iv) the distribution reforms took place in Punjab in
                April, 2010 and hence, the bidders could not have
                considered benefits available under the Mega Policy
                2009 prior to the submission of the bid; and
           (v)    in relation to the Project, the Petitioner No.1 had
                  applied to the Ministry of Power for grant of mega
                  power status to the Project on 11.05.2010 and the
                  Ministry of Power had granted the said status vide
                  its letter dated 30.07.2010.”
19. Ultimately, after a lengthy exchange of correspondence with each
    party sticking to their respective position, the appellant no. 1 submitted
    an undertaking in the specified format (the factum of the undertaking
    being under protest and without prejudice as claimed by the appellant
    is disputed by the respondent) in order to avoid further delay in the
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       issuance of the Essentiality Certificate. The respondent replied by
       stating that the non-escalable capacity charge would stand reduced in
       terms of the Article 13 of PPA in proportion to the concession in custom
       duty on the consignment value of the imported goods. Ultimately, the
       appellant obtained the Essentiality Certificate on 16.06.2011. Similar
       affidavits were furnished for the further imports and the respondent
       granted Essentiality Certificate only on the condition that it would
       have the right to seek appropriate reduction in tariff on account of
       decrease in capital cost of the project.
20. On 22.05.2012, the appellants filed a Petition bearing Petition no. 30
    of 2012 before the Punjab State Electricity Regulatory Commission,
    Chandigarh under Section 86(1)(f) of the Electricity Act, 2003,
    contending that appellant no. 2 had considered and factored the
    benefits available to the project under the Mega Power Policy of 2009,
    on 09.10.2009 when they submitted the bid and had passed on
    such benefits to the respondent by way of the tariff it quoted. The
    appellant contended that no change in law occurred in view of the
    notification of 11.12.2009 and 14.12.2009 and whatever change
    was there, happened on 01.10.2009 itself with the press release
    of the Cabinet decision. The following prayers were made in the
    claim petition:
            “In light of the facts and circumstances as stated above,
            the Petitioners are respectfully praying before this Hon’ble
            Commission:
            “(a) to declare that the Union Cabinet’s decision dated
                 01.10.2009 modifying the Mega Policy 2006 reported
                 vide Press Information Bureau on the same date
                 does not amount to ‘Change in Law’ under Article
                 13 of the PPA;
            (b)   following the declaratory relief sought by the
                  Petitioners, to hold that consequential relief as set
                  out under Article 13.2 of the PPA has not triggered
                  and no consequential benefits under Article 13
                  have to be passed on to the Respondent by the
                  Petitioner under the PPA on account of Union
                  Cabinet’s decision to change the Mega Policy 2006
                  dated 01.10.2009;
[2024] 11 S.C.R.                                                          467

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

          (c)   in alternative, if reliefs sought under para (a) and (b)
                above are not granted, then to direct and allow that
                the Petitioners shall be entitled to claim ‘Change in
                Law’ against the Respondent’s claim on the basis
                of withdrawal of fiscal benefits which were available
                to the Project under the FTP on the date of bidding
                on standalone basis, without considering Mega
                Policy, 2009;
          (d)   award cost in favour of the Petitioners;
          (e)   pass such other and further orders / directions as
                the Hon’ble Commission may deem appropriate in
                the facts and circumstances of the case.”
     Though the prayer are not happily worded, the issue raised with
     regard to the Mega Power Policy issue, as understood by both
     parties, is whether the legal regime was altered on 01.10.2009 or
     on 11.12.2009 and 14.12.2009 respectively.
21. The appellant’s claim before the Commission was founded on twin
    basis. The main relief was on the aspect of the Mega Power Policy,
    the contention of the appellant being that the legal regime was altered
    on 01.10.2009, with the Cabinet Decision, as noticed in the Press
    Release of 01.10.2009. The alternative plea was based on the Foreign
    Trade Policy (in short ‘FTP’) and the appellants contention was that
    in the alternative, the appellant was entitled to claim change in law
    against the respondent on the basis of withdrawal of fiscal benefits
    which were available to the project under the Foreign Trade Policy
    on the date of bidding, on a standalone basis without considering
    the Mega Power Policy of 2009.
     Order of the State Commission
22. By its Order of 12.11.2012, the State Commission rejected both the
    prayers. The State Commission held that the mega power status
    was made available to a project only when the State in which the
    project is being setup had undertaken the reforms mentioned in the
    Ministry of Power’s letter dated 03.12.2009; that these reforms were
    undertaken by the Government of Punjab only on 16.04.2010 and
    intimated to the Central Government vide letter dated 30.04.2012;
    that the detailing in respect of the modified policy was not available
    in the press release dated 01.10.2009; that the same was covered
468                                                         [2024] 11 S.C.R.

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       only in the letter dated 03.12.2009 of the Ministry of Power addressed
       to the States and in the notification of the Ministry of Power
       dated 14.12.2009. The Commission further held that the benefit of
       mega power status cannot be granted with effect from 01.10.2009
       considering the fact that it was only after a gazette notification that
       the public at large were informed of the decisions of the Government
       and which gazette notification was issued only in December, 2009.
       That the press release itself provided a disclaimer that though all
       efforts have been made to ensure the accuracy and the currency
       and the content of the website of the Press Information Bureau, the
       same should not be construed as a statement of law or used for
       any legal purpose. On the FTP issue, it was held that the benefits
       under the FTP were never available to the appellant and if identical
       benefits were indeed available to them under the FTP, there was no
       need for them to claim the same benefit under the modified Mega
       Power Policy. It was further held that even if it was assumed for
       the sake of argument that the FTP benefits were available before
       the cutoff date, they have forfeited their right to these benefits by
       claiming similar benefits under the new Mega Power Policy.
       Proceedings before APTEL
23. After the Order of the State Commission, the appellant filed Appeal
    No. 29 of 2013 in the APTEL. The APTEL in the impugned judgment
    denied benefits under the Mega Power Policy and confirmed the
    order of the State Commission on the said issue. Insofar as the FTP
    aspect was concerned, the issue was remanded to the Commission.
    According to the APTEL, the State Commission in the order impugned
    before it had not analyzed the question as to whether the benefits
    under the FTP were available to the appellant as on the cutoff
    date of 02.10.2009 and whether the subsequent withdrawal by the
    Government of India would amount to change in law.
24. Pursuant to the remand, the Commission revived petition No. 30 of
    2012 and issued notice for rehearing on the appellant’s alternative
    claim based on FTP. By its judgment of 16.12.2014, the Commission
    rejected the claim of the appellant based on the FTP by a majority
    order.
25. Aggrieved by the same, the appellants filed Appeal No. 47 of 2015
    before APTEL. By a judgment of 04.07.2017, the APTEL dismissed
    the Appeal No. 47 of 2015 of the appellant. Against the said judgment
[2024] 11 S.C.R.                                                        469

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     of APTEL dated 04.07.2017, appellant has filed Civil Appeal No. 8694
     of 2017. We have in this judgment not touched upon the issues in
     Civil Appeal No. 8694 of 2017.
26. Coming back to the order of the APTEL dated 30.06.2014, the APTEL
    while dismissing the appeal insofar as the first issue of the Mega
    Power Policy discussed therein was concerned held that the press
    release did not indicate the terms and conditions on which the Mega
    Power Status could be made available; that the press release cannot
    be construed as a statement of law in view of the disclaimer; that
    the notification dated 11.12.2009 modifying the customs duty and
    specifying the terms and conditions for Mega Power is what is law
    under the definition in the power purchase agreement and that the
    Mega Power Status was received only on 30.07.2010. Certain other
    findings have also been recorded which are not directly germane
    in view of the decision that we have ultimately taken in this Appeal.
27. Aggrieved by the judgment of the APTEL on the issue of the Mega
    Power Policy, the appellants have filed Civil Appeal No. 8478 of 2014.
     Contentions:
28. In support of the appeal, we have heard Mr. C.S. Vaidyanathan,
    learned Senior Advocate and in opposition thereof we have heard
    Mr. M.G. Ramachandran, learned Senior Advocate for the respondent
    no.1.
     Submissions of the Appellant
29. Learned Senior Counsel for the appellant contends that the effect of
    the Cabinet Decision must be seen with respect to the contours of the
    definition of law in the Power Purchase Agreement; that the definition
    includes “any order” of any Indian Government instrumentality and
    hence it cannot be said that the decision of the highest constitutionally
    entrusted body for formulating binding national policy is not law for
    the purpose of the PPA; that the appellant could not be expected
    to ignore the decision of the Cabinet dated 01.10.2009 announced
    through the press release being a prudent bidder/businessmen; that
    even the respondent concedes that the Cabinet Decision could lead
    to promissory estoppel against the Government; that clause 2.7.2.1
    of the RFP deems that the bidders have factored in all “Required
    information/factors that may have any effect on the bid” and that the
    Cabinet Decision is at least an information/factor for bidding purposes.
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30. Learned senior counsel contended that the appellant factored in the
    fiscal benefits accruing from the Mega Policy in view of the Cabinet
    Decision of 01.10.2009; that the appellant informed PSPCL by way
    of letters dated 02.10.2009 and 06.10.2009 about the factoring in of
    the benefits; that the Mega Power Policy 2006 amendments stood
    approved on 01.10.2009 and hence the same amounted to law;
    that the implementing actions that followed the Cabinet Decision
    also accord the same understanding as would be clear from the
    Ministry of Power letter dated 03.12.2009, the Minutes of meeting
    dated 28.10.2009 annexed to the letter dated 03.12.2009, the
    Memorandum dated 14.12.2009 and the fact that each department
    was bound to carry out the policy in pursuance of the Cabinet
    Decision dated 01.10.2009.
31. Learned Senior Counsel further contended that to claim change in
    law (restitution), three essential ingredients are necessary namely
    (a) The event must be after the cutoff date (b) it must be an event
    stipulated in Article 13.1.1 (1 to 4) of the PPA and (c) it must result in
    change in cost of or revenue from the business of selling electricity
    under the PPA.
32. Learned Senior Counsel contends that the respondent to claim relief
    under, ‘change in law’ must establish with documentary proof that
    consequent to change in law there has been a decrease in capital
    cost and since the appellant in its bid submitted on 09.10.2009 had
    factored in the benefit derived from the Cabinet Decision in relation
    to Mega projects, it received no economic benefit and there was no
    change in the cost or revenue from the business of selling electricity
    under the PPA in view of the issuance of the notification on 11.12.2009.
33. Learned senior counsel contended that there was no notice for
    change in law issued by the respondent under Article 13.3.2; no
    proof of reduction in capital cost and no issuance of supplementary
    bill. Further, learned senior counsel contended that no petition
    claiming change in law or any counter claim to the same effect was
    filed by the respondent and it was the appellant which approached
    the State Commission contending that the Cabinet Decision
    dated 01.10.2009 is law as on the cutoff date and thus, there was
    no change in law event enuring to the advantage of the respondent.
    It is further contended for the appellant that the Mega Power Policy
    issued in 2006 was issued by way of an executive decision and
[2024] 11 S.C.R.                                                        471

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     that the present Cabinet Decision is also issued under Article 77 of
     the Constitution of India; that the requirement to place the Cabinet
     Decision before the President is only for information and on this
     aspect no Presidential assent is a prerequisite. Lastly, it is contended
     that as per Rule 50(13) of the Central Secretariat, Manual of Office
     Procedure, the Press Communique/Note is the approved formal
     procedure of communication. Learned senior counsel relied on a
     large number of precedents in support of his submissions.
     Submission of the Respondent
34. While stoutly defending the orders of the fora below, learned senior
    counsel for the respondent contends that change in law for the purpose
    of customs duty insofar as the appellant is concerned was brought
    into force only on 11.12.2009 with the issuance of customs notification
    under Section 25 of the Customs Act 1962; that Section 25(1) of
    the said Act provides for exemption from the payment of customs
    duty to be by notification; that Sub-Section 4 of Section 25 inter
    alia provides that every notification unless otherwise provided shall
    come into force on the date of its issue by the Central Government
    for publication in the Official Gazette and that Cabinet Decision by
    itself cannot therefore effect such a change without a notification
    under Section 25 since if something is specified to be done in a
    particular manner it needs to be done in that manner and in no other.
    In view thereof, it was contended that it was the customs notification
    dated 11.12.2009 which brought into force the ‘change in law’.
35. Learned senior counsel for the respondent contended that
    without prejudice to the above submissions, the Cabinet Decision
    dated 01.10.2009 was only the intent or proposal to implement
    something in future and not to give effect to something on 01.10.2009
    itself; the Cabinet Decision does not also provide that the benefits
    therefrom will be effective from 01.10.2009; that the Cabinet Decision/
    Press release by no means can be said to be a regulation, notification,
    Code, Rule, or order having a force of law as specified in the definition
    of the term “Law” in the PPA; that under the Rules of Business of
    the Central Government, the decision taken in the Cabinet ought
    to get implemented in the manner provided or under the relevant
    statute such as by Notification, Rule, Regulation or Code in the case
    of the plenary legislation, such as the Customs Act; in the absence
    of any plenary legislation, the manner of implementation is provided
472                                                       [2024] 11 S.C.R.

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       under Article 77 by the issuance of an authenticated instrument in
       the manner provided thereon; that the definition of the term “Law”
       in the PPA and the expression “Decision” is limited only with regard
       to the decision by the Appropriate Commission and not an Indian
       Governmental instrumentality. Learned senior counsel contends
       that there is no scope for the argument of the promissory estoppel
       in inter-partes disputes between the appellant and the respondent
       since the Union of India is not a party and the present proceeding
       is not a proceeding where a promise is sought to be enforced by a
       Court of law, against the promisor.
36. The learned senior counsel contends that the appellant under
    Clauses 2.7.2.1 and 2.7.2.2 ought to have considered only the
    applicable law. It is further contended that the Cabinet Decision
    of 01.10.2009 did not decide all the aspects of the distribution
    reforms to be undertaken by the concerned State Government to
    entitle the intra-state power projects in the State to be eligible for
    Mega Power benefits. To illustrate, it is contended that the Cabinet
    Decision stated that “Power Purchasing States” shall undertake to
    carry out distribution reforms as laid down by the Ministry of Power.
    Learned senior counsel contends that Ministry of Power laid down the
    conditions on 03.12.2009 including an undertaking to be given by the
    State Government to the Government of India as a pre-condition. In
    view of this, learned senior counsel contends that the Cabinet Decision
    was not in complete form and it was only after the conditions were
    laid down by the Ministry of Power on 03.12.2009 that the notification
    dated 11.12.2009 and office memorandum of 14.12.2009 was issued
    by the Central Government providing for exemption to Mega Power
    Projects specifically stating that “The Power Purchasing State shall
    undertake to carry out distribution reforms as laid down by the
    Ministry of Power”. Learned senior counsel contends that the Mega
    Power Policy was issued only on 14.12.2009 with further additions.
    In view of the same, learned senior counsel for the respondents
    contend that there is no scope for interference with the concurrent
    judgments of the Courts below.
       Question for consideration:
37. In the above background, the question that arises for consideration
    is: Whether the press release of 01.10.2009 announcing the
    decision of the Union Cabinet about approval of certain modifications
[2024] 11 S.C.R.                                                            473

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     envisaged in the then existing mega power policy, is covered within
     the meaning of the expression “law as defined in Clause 1.1 of the
     RFP/PPA and if so did the extant legal regime as on 01.10.2009
     undergo a change from the said date”?
     Analysis and reasons:
38. The appellant’s case, as set out above, is that with the press release
    on 01.10.2009, a new legal regime commences and on that basis,
    it is contended that the appellant in its bid of 09.10.2009 factored
    the altered position including the fiscal benefits due to customs
    duty exemptions. The respondent’s case is that the press release
    of 01.10.2009 only sets out the proposal for modification and the real
    modification happened on 11.12.2009 and 14.12.2009 (preceded by
    the letter of 03.12.2009). According to them, since the change of law
    having happened on 11.12.2009/14.12.2009 the benefits that have
    accrued to the appellant ought to be passed on. This is the simple
    issue to be resolved.
39. To answer this question, certain clauses from RFP needs to be set
    out. The RFP carried the format of the power purchase agreement
    as Format 1 Annexure 3. There is no dispute that the same clauses
    occurred in the power purchase agreement executed on 18.01.2010.
    Clause 1.1 defines law as under :
          “Law: means, in relation to this Agreement, all laws
          including Electricity Laws in force in India and any statute,
          ordinance, regulation, notification or code, rule, or any
          interpretation of any of them by an Indian Governmental
          Instrumentality and having force of law and shall
          further include all applicable rules, regulations, orders
          notifications by an Indian Governmental Instrumentality
          pursuant to or under any of them and shall include all
          rules, regulations, decisions and orders of the Appropriate
          Commission.”
40. The relevant Clauses read as under:-
          “13 ARTICLE 1.3 Change in Law
          13.1 Definitions
          In this Article 13, the following terms shall have the following
          meanings.
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       13.1.1 “ Change in Law” means the occurrence of any
       of the following events after the date, which is seven (7)
       days prior to the Bid Deadline;
       (i) the enactment, bringing into effect, adoption,
       promulgation, amendment, modification or repeal, of
       any law or (ii) a change in interpretation of any law by a
       competent court of law, tribunal or Indian Governmental
       instrumentality provided such Court of law, tribunal or
       Indian Governmental Instrumentality is final authority
       under law for such interpretation or (iii) change in any
       consents approvals or licenses available or obtained for
       the project, otherwise than for default of the seller, which
       results in any change in any cost of or revenue from the
       business of selling electricity by the seller to the procurer
       under the terms of this agreement or (iv) any change in
       the (a) declared price of land for the project or (b) the cost
       of implementation of the resettlement and rehabilitation
       package of the land for the project mentioned in the RFP
       or (c) the cost of implementing environmental management
       plan for the power station (d) deleted.
       but shall not include (i) any change in any withholding tax
       on income or dividends distributed to the shareholders
       of the Seller, or (ii) change in respect of UI Charges or
       frequency intervals by an Appropriate Commission.
       13.1.2 “Competent Court” means:
       The Supreme Court or any High Court, or any tribunal or
       any similar judicial or quasi-judicial body in India that has
       jurisdiction to adjudicate upon issues relating to the Project.
       13.2 Application and Principles for computing impact of
       Change in Law
       While determining the consequence of Change in Law
       under this Article 13, the Parties shall have due regard to
       the principle that the purpose of compensating the Party
       affected by such Change in Law, is to restore through
       Monthly Tariff payments, to the extent contemplated in
       this Article 13, the affected Party to the same economic
       position as if such Change in Law has not occurred.
[2024] 11 S.C.R.                                                           475

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

          a) Construction Period
          As a result of any Change in Law, the impact of
          increase/decrease of Capital Cost of the Project in the
          Tariff shall be governed by the formula given below:
          For every cumulative increase/decrease of each
          Rupees 16,50,00,000/-
          (Rupees Sixteen crore fifty lakhs) in the Capital Cost
          over the term of this Agreement, the increase/decrease
          in Non Escalable Capacity Charges shall be an amount
          equal to 0.267% (percentage zero point two six seven)
          of the Non Escalable Capacity Charges. Provided that
          the Seller provides to the Procurer documentary proof of
          such increase/decrease in Capital Cost for establishing
          the impact of such Change in Law. In case of Dispute,
          Article 17 shall apply:
          It is clarified that the above mentioned compensation shall
          be payable to either Party, only with effect from the date
          on which the total increase/decrease exceeds amount of
          Rupees 16,50,00,000/- (Rupees Sixteen crore fifty lakhs).
          b) Operation Period
          As a result of Change in Law, the compensation for any
          increase/decrease in revenues or cost to the Seller shall
          be determined and effective from such date, as decided
          by the Appropriate Commission whose decision shall be
          final and binding on both the Parties, subject to rights of
          appeal provided under applicable Law.
          Provided that the above mentioned compensation shall be
          payable only if and for increase/decrease in revenues or
          cost to the Seller is in excess of an amount equivalent to
          1% of the Letter of Credit in aggregate for a Contract Year.
          13.3 Notification of Change in Law
          13.3.1 If the Seller is affected by a Change in Law in
          accordance with Article 13.2 and wishes to claim a Change
          in Law under this Article, it shall give notice to the procurer
476                                                   [2024] 11 S.C.R.

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       of such Change in Law as soon as reasonably practicable
       after becoming aware of the same or should reasonably
       have known of the Change in Law.
       13.3.2 Notwithstanding Article 13.3.1, the Seller shall
       be obliged to serve a notice to the Procurer under this
       Article 13.3.2 if it is beneficially affected by a Change in
       Law. Without prejudice to the factor of materiality or other
       provisions contained in this Agreement, the obligation to
       inform the Procurer contained herein shall be material.
       Provided that in case the Seller has not provided such
       notice, the Procurer shall have the right to issue such
       notice to the Seller.
       13.3.3 Any notice served pursuant to this Article 13.3.2
       shall provide, amongst other things, precise details of:
       (a) the Change in Law; and
       (b) the effects on the Seller of the matters referred to in
       Article 13.2.
       13.4. Tariff Adjustment Payment on account of Change
       in Law
       13.4.1 Subject to Article 13.2., the adjustment in Monthly
       Tariff Payment shall be effective from:
       (i) the date of adoption, promulgation, amendment, re-
       enactment or repeal of the Law or Change in Law; or
       (ii) the date of order/judgment of the Competent Court
       or tribunal of Indian Governmental Instrumentality, if the
       Change in Law is on account of a change in interpretation
       of Law.
       13.4.2 The payment for Changes in Law shall be
       through Supplementary Bill as mentioned in Article 11.8.
       However, in case of any change in Tariff by reason of
       Change in Law, as determined in accordance with this
       Agreement, the Monthly Invoice to be raised by the Seller
       after such change in Tariff shall appropriately reflect the
       changed Tariff.”
[2024] 11 S.C.R.                                                       477

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

41. The golden rule of interpretation is that the words of a contract
    should be construed in their grammatical and ordinary sense,
    except to the extent that some modification is necessary in order to
    avoid absurdity, inconsistency or repugnancy. (See para 5.01 Kim
    Lewison, The interpretation of Contracts, 3rd Edition). Similarly,
    any invocation of the business efficacy test as canvassed would
    arise only if the terms of the contract are not explicit and clear. The
    business efficacy test cannot contradict any express term of the
    contract and is invoked only if by a plain and literal interpretation
    of the term in the agreement or the contract, it is not possible to
    achieve the result or the consequence intended by the parties acting
    as prudent businessmen. [See Nabha Power Limited (NPL) vs.
    Punjab State Power Corporation Limited (PSPCL) and Another
    (2018) 11 SCC 508 (para 49) and Adani Power (Mundra) Limited
    vs. Gujarat Electricity Regulatory Commission and Others
    (2019) 19 SCC 9 (para 24).
42. The law as defined in Clause 1.1 was validly promulgated vide the
    notification of 01.03.2002 and the policy document dated 07.08.2006.
    The appellant seeks to contend that the press release of 01.10.2009
    announcing the Cabinet decision approving the modified Mega Power
    Policy as envisaged tantamounts to “law” as defined in Clause 1.1 of
    the Request For Proposal. The appellant contends that qua the Power
    Purchase Agreement (PPA), the press release of 01.10.2009 would be
    an order and covered by the phrase “and shall include all applicable
    rules, regulations, orders, notifications by an Indian Governmental
    Instrumentality”. We are unable to accept this submission. First of all,
    the commonly understood meaning of the word “order” as defined
    in Black’s Law Dictionary is as follows:-
          “Order – A command, direction or instruction. See
          MANDATE (1) 2. a written direction or command delivered
          by a government official, esp. a court or judge.”
43. The press release of 01.10.2009 certainly does not fulfil the
    meaning of the word “order” as understood in legal parlance. As
    explained earlier, the Press Release with all its future eventualities
    and conditionalities is only a proposal and it is only after the
    undertakings were agreed to be given by the State Government
    that a final shape was given in the form of a Section 25 customs
    notification on 11.12.2009 and by the policy document of 14.12.2009.
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       The press release announcing the cabinet approval of certain
       modifications envisaged in the existing Mega Power Policy is not
       law as defined in Clause 1.1 of the PPA. Further, the press release
       does not enact, adopt, promulgate, amend, modify or repeal any
       existing law or bring into effect any law. This aspect has been
       elaborated hereinbelow. Hence, the appellant’s would fail on the
       ground that the press release of 01.10.2009 is not law and as
       of 01.10.2009, the continuing legal regime was as per the notification
       of 01.03.2002 issued under Section 25 of the Customs Act and the
       Mega Power Policy of 07.08.2006 and there was no alteration of
       that legal regime on 01.10.2009. The change in law occurred only
       on 11.12.2009/14.12.2009, and the respondent no. 1 has rightly
       been held by the fora below to be entitled to the benefits, which
       ultimately will go to the consumers.
44. The argument feebly advanced by the appellant that no notice of
    change of law was issued by the respondent under Clause 13.3.1
    and 13.3.2 does not impress us. The said clause expressly deals
    only with a seller having to issue the notice if it is beneficially affected
    by the change of law. In this case, PSPCL is the buyer. Further,
    post the change in law on 11.12.2009/14.12.2009 there is a change
    in cost with the reduction of customs duty which will enure to the
    benefit the appellant-seller and under 13.1.1. the benefit ought to
    be passed on to the respondent.
45. The words of clause 13.1.1 read with the definition of law in Clause 1.1
    are plain and clear. For a change in law to occur, the following events
    ought to have happened seven days prior to the bid deadline that
    is on 02.10.2009 in our case; (i) the enactment brining into effect,
    adoption, promulgation, amendment, modification or repeal of any
    law or (ii) a change in interpretation of any law by a competent court
    of law, Tribunal or Indian Governmental instrumentality provided such
    court of law, Tribunal or Indian Governmental instrumentality is the
    final authority under law for such interpretation or (iii) change in any
    consents, approvals or licences available or obtained for the project,
    otherwise than for default of the seller, which results in any change
    in any cost or revenue from the business of selling electricity by the
    seller to the procurer under the terms of this agreement or (iv) any
    change in the (a) declared price of land for the project or (b) the cost
    of implementation of the resettlement and rehabilitation package of the
    land for the project mentioned in RFP or (c) the cost of implementing
[2024] 11 S.C.R.                                                         479

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     environmental management plan for the power station but shall not
     include (i) any change in any withholding tax on income or dividends
     distributed to the shareholders of the Seller, or (ii) change in respect
     of UI Charges or frequency intervals by an Appropriate Commission.
46. Considering the facts of the case and the arguments, we are very
    clear that the case of the parties is not based on any change in
    interpretation or change in consent, approval or licence so these
    sub clauses of the opening part of 13.1.1 is ruled out. Equally,
    the latter part dealing with price of land for the project and cost
    of implementation and rehabilitation package of land or cost of
    implementing environmental management plan is also not attracted.
47. The question that remains is the applicability of sub clause (i) of
    clause 13.1.1 namely, when did the change in law happen? For 13.1.1.
    (i) to be attracted there has to be an enactment, bringing into effect,
    adoption, promulgation, amendment, modification or repeal of any
    law. Further, if there was a change in law the question would be,
    did it result in any change in any cost or revenue from the business
    of selling electricity by the seller to the procurer under the terms of
    the agreement.
48. It is important to keep in mind the definition of law which has been
    defined to mean in relation to this Agreement, all laws including
    Electricity Laws in force in India and any statute, ordinance, regulation,
    notification or code, rule or any interpretation of any of them by an
    Indian Governmental instrumentality and having force of law and shall
    further include all applicable rules, regulations, orders, notification
    by an Indian Governmental instrumentality pursuant to or under
    any of them and shall include all rules, regulations, decisions and
    orders of the Appropriate Commission. We are convinced that the
    words “shall include all rules, regulations, decisions and orders of
    the Appropriate Commission”, only refer to the rules, regulations,
    decisions and orders of the Appropriate Commission.
49. It is important to bear in mind that ‘law’ is one thing and ‘change in
    law’ is another, in the sense that the two are two different concepts.
    For the case in question, we need to understand what the extant
    law was on 01.10.2009 and then decide whether there was a legal
    regime alteration as defined under 13.1.1 on the said date.
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50. The law, as it stood prior to the press release of 01.10.2009
    insofar as the financial implications for the matter is concerned,
    was the notification under Section 25 of the Customs Act issued
    on 01.03.2002 and entry 400 thereof, extracted in the earlier
    part of this judgment. That notification, subject to the conditions
    mentioned thereon in entry 400 granted exemption from customs
    duty for import of goods required for setting up of any Mega Power
    project if such Mega Power project was an inter-State power plant
    and if it fulfilled the other conditions mentioned in the notification.
    Section 25(1) of the Customs Act under which the notification is
    issued reads as under:
          “25. Power to grant exemption from duty.- (1) If the
          Central Government is satisfied that it is necessary in
          the public interest so to do, it may, by notification in the
          Official Gazette, exempt generally either absolutely or
          subject to such conditions (to be fulfilled before or after
          clearance), as may be specified in the notification goods
          of any specified description from the whole or any part of
          duty of customs leviable thereon.”
51. It will be very clear that for an exemption under the Customs Act
    to operate thereon there has to be a notification issued in the
    manner provided by the Customs Act and duly published in the
    official gazette. It is so well settled that if a certain thing has to
    be done in a certain manner, it shall be done in that manner or
    not at all. [See Babu Verghese and Others vs. Bar Council of
    Kerala and Others (1999) 3 SCC 422, relying on Taylor vs. Taylor
    (1875) 1 C h D 426 and Nazir Ahmad vs. King Emperor, AIR 1936
    PC 253]. Further, Section 21 of the General Clauses Act, 1897 clearly
    prescribes as under:-
          “21. Power to issue, to include power to add to,
          amend, vary or rescind, notifications, orders, rules or
          bye-laws.—Where, by any Central Act or Regulation, a
          power to issue notifications, orders, rules, or bye-laws is
          conferred, then that power includes a power, exercisable
          in the like manner and subject to the like sanction and
          conditions (if any) to add to, amend, vary or rescind any
          notifications, orders, rules or bye-laws so issued.”
                                               (Emphasis Supplied)
[2024] 11 S.C.R.                                                       481

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

     There was no duly constituted amendment notification as
     on 01.10.2009.
52. The exemption notification has to be read with the then extant policy of
    07.08.2006 under which Mega Power Policy, to obtain a Mega Power
    Status, the plant had to be an inter-State power plant of the prescribed
    dimensions and if it were so, certain financial concessions/benefits
    were to be available to it under the policy document. Admittedly, that
    policy of 07.08.2006 was duly promulgated by the Government of
    India through Ministry of Power and there is no dispute on this score.
53. What the appellant contends is that with the press release
    on 01.10.2009 and they having received no positive response to the
    letters of 02.10.2009 and 06.10.2009 (since withdrawn), they in their
    bid of 09.10.2009 factored in the benefits that would be available
    in view of the Cabinet decision as announced in the press release
    of 01.10.2009. According to the appellants, as such, when the
    notifications for amendment were issued on 11.12.2009 and when the
    policy document was amended on 14.12.2009, there was no change
    in law because the legal regime stood altered on 01.10.2009 with the
    press release. Respondents contended that any clarification for the
    bid ought to have been sought before 25.09.2009 and independent
    of that they also contend that press release of 01.10.2009 does
    not tantamount to law and that the change in law happened only
    on 11.12.2009/14.12.2009.
54. The scenario that emerges is that there was a legal regime operating,
    which continued to have force since there was no repeal of the
    notification of 01.03.2002 or the supersession of the Mega Power
    Policy document of 07.08.2006 on 01.10.2009. The press release
    clearly mentioned as to what was envisaged and the conditions that
    were to be replaced and removed.
55. In our considered opinion, the press release did not alter/amend/
    repeal the existing law as on 01.10.2009. It was at best the
    announcement of a proposal approved by the Cabinet which had to
    be given shape after fulfilment of the conditions mentioned therein.
    Some of the conditions were that the power purchasing States were
    to undertake to carry out distribution reforms as laid down by the
    Ministry of Power and admittedly in that regard there was a meeting
    held on 28.10.2009; an undertaking was sought from the States in
    the prescribed formats and the four distribution reform measures
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       required to be undertaken were part of the undertaking. Those four
       measures are (a) timely release of subsidy as per Section 65 of the
       Electricity Act, 2003 (b) Ensure that discoms will approach SERC
       for approval of annual revenue requirement/tariff determination in
       time according to SERC regulations (c) Setting up of Special Courts
       as provided in the Electricity Act, 2003 to tackle the related cases
       and (d) ring fencing of SLDCs.
56. It was thereafter on 11.12.2009 in due compliance with the provisions
    of Section 25 of the Customs Act that the amendment notifications
    were issued which expressly specified the condition that the
    power purchasing States ought to have undertaken to carryout
    distribution reforms as laid out by the Ministry of Power. It is only
    with the promulgation of the 11.12.2009 notification that entry 400
    of the 01.03.2002 notification issued earlier in 2002 was substituted
    to cover goods required for setting up of any Mega Power Project
    (as now defined and set out in the notification of 11.12.2009 and
    elaborated in the policy document of 14.12.2009) did the ‘change
    in law’ happen.
57. Could the appellant has assumed that the Press Release of 01.10.2009
    ordained a new legal regime? We think not and we hold accordingly.
    The press release is a summary of the Cabinet decision. Even the
    press release makes it clear that it was a proposal that was envisaged
    and which was to come into force in future.
58. Certainty is the hallmark of law. It is one of its essential attributes.
    It is an integral component of the rule of law. What was certain
    on 01.10.2009 in the context of our case was only the prevalent
    customs notification of 01.03.2002 issued under section 25, duly
    notified and gazetted as well as the Mega Power Policy document
    admittedly promulgated on 07.08.2006.
59. The press release summarizing the Cabinet decision and beset with
    several conditions created no vested rights on any party to the power
    purchase agreement vis-a-vis the other party on 01.10.2009. In fact,
    the press release itself contemplated certain contingencies. A right
    vests when all the facts have occurred which must by law occur in
    order for the person in question to have the right (see Salmond on
    Jurisprudence, Twelfth Edition P.J. Fitzgeral page 245). It is only
    when the right vests will there be a corelative duty on the other as
    far as nature of the right involved in the present case is concerned.
[2024] 11 S.C.R.                                                          483

                      Nabha Power Limited & Anr. v.
              Punjab State Power Coroporation Limited & Anr.

60. Accepting the argument would also create tremendous uncertainties
    in the law. In the absence of any repeal of 01.03.2002 notification
    and the 07.08.2006 Mega Power Policy, between 01.10.2009
    and 11.12.2009/14.12.2009 there will be two legal regime operating.
61. Lord Bingham of Cornhill in his locus classicus ‘The Rule of Law’
    rightly identifies as one of the facets of rule of law, the following –
    “the law must be accessible and so far as possible intelligible, clear
    and predictable.” The second and third reason given to support
    the principle makes for fascinating reading and are reproduced
    hereinbelow.
             “The second reason is rather similar, but not tied to the
             criminal law. If we are to claim the rights which the civil
             (that is, non-criminal) law gives us, or to perform the
             obligations which it imposes on us, it is important to know
             what our rights or obligations are. Otherwise we cannot
             claim the rights or perform the obligations. It is not much
             use being entitled to, for example, a winter fuel allowance
             if you cannot reasonably easily discover your entitlement,
             and how you set about claiming it. Equally, you can only
             perform a duty to recycle different kinds of rubbish in
             different bags if you know what you are meant to do.
             The third reason is rather less obvious, but extremely
             compelling. It is that the successful conduct of trade,
             investment and business generally is promoted by a body
             of accessible legal rules governing commercial rights
             and obligations. No one would choose to do business,
             perhaps involving large sums of money, in a country
             where the parties’ rights and obligations were vague or
             undecided. This was a point recognized by Lord Mansfield,
             generally regarded as the father of English commercial law,
             around 250 years ago when he said: The daily negotiations
             and property of merchants ought not to depend upon
             subtleties and niceties; but upon rules easily learned and
             easily retained, because they are the dictates of common
             sense, drawn from the truth of the case.”1 In the same
             vein he said: ‘In all mercantile transactions the great


1   Hamilton vs. Mendes (1761) 3 Burr 1198, 1214
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             object should be certainty: and therefore, it is of more
             consequence that a rule should be certain, than whether
             the rule is established one way or the other. Because
             speculators [meaning investors and businessmen] then
             know what ground to go upon.”2
62. Explaining felicitously the said principle, O. Chinnappa Reddy, J.
    speaking for this Court in B.K. Srinivasan and Others vs. State of
    Karnataka and Others (1987) 1 SCC 658 ruled:-
             “15. There can be no doubt about the proposition that
             where a law, whether parliamentary or subordinate,
             demands compliance, those that are governed must be
             notified directly and reliably of the law and all changes and
             additions made to it by various processes. Whether law
             is viewed from the standpoint of the “conscientious good
             man” seeking to abide by the law or from the standpoint
             of Justice Holmes›s “unconscientious bad man” seeking
             to avoid the law, law must be known, that is to say, it must
             be so made that it can be known. We know that delegated
             or subordinate legislation is all-pervasive and that there is
             hardly any field of activity where governance by delegated
             or subordinate legislative powers is not as important if
             not more important, than governance by parliamentary
             legislation. But unlike parliamentary legislation which is
             publicly made, delegated or subordinate legislation is
             often made unobtrusively in the chambers of a Minister,
             a Secretary to the Government or other official dignitary.
             It is, therefore, necessary that subordinate legislation, in
             order to take effect, must be published or promulgated
             in some suitable manner, whether such publication or
             promulgation is prescribed by the parent statute or not.
             It will then take effect from the date of such publication
             or promulgation. Where the parent statute prescribes the
             mode of publication or promulgation that mode must be
             followed.…”
                                                   (Emphasis supplied)


2   Vallejo vs. Wheeler (1774) 1 Cowp 143, 153
[2024] 11 S.C.R.                                                      485

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

63. The appellant has relied upon RFP to contend that the Press release
    of 01.10.2009 could not have been ignored by them. We do not
    find merit in this submission. Those clauses in the RFP obligate
    the bidder to satisfy itself about the extant legal regime and those
    clauses cannot operate as a crutch to elevate the press release
    of 01.10.2009 to the status of law under Clause 1.1. of the PPA.
64. We have also found that the terms of the contract to be clear and
    hence there is no scope for applying any business efficacy test to
    interpret the contract as was sought to be contended for the appellant.
65. One of the arguments advanced by the learned senior counsel for
    the appellants is based on the doctrine of promissory estoppel. The
    argument need not detain us since the respondent PSPCL which
    is the party to power purchase agreement is not the promisor,
    even if we assume the press release of 01.10.2009 as holding out
    the promise. The Union of India has not been arrayed in any duly
    constituted litigation to enforce the promise. The argument also belies
    the primary contention of the appellant since even according to their
    understanding, it was at best a promise by the Union of India and
    not any alteration of the law proprio vigore (by its own force). In any
    case, no steps have been taken to enforce the so-called promise
    and there is no order of any court of law enforcing the promise
    as on 02.10.2009. The appellant contends that since the promise
    was duly complied with, there was no need to enforce the promise.
    This is also an argument which cuts at the root of appellants main
    submission. The notifications constituting change in law happened
    on 11.12.2009 and 14.12.2009 and hence there is no basis in the
    contention that on 01.10.2009 the old legal regime had given way.
66. The judgments cited by learned Senior Counsel for the appellant
    also do not in any manner support the case of the appellant. In
    GMR Warora Energy Limited vs. Central Electricity Regulatory
    Commission [CERC] and Others (2023) 10 SCC 401, this Court
    found that busy season surcharge, development surcharge, and port
    congestion surcharge were increased by circular/notifications issued
    by the Ministry of Railways by virtue of the powers vested in them
    which were enforceable commands proprio vigore. Similarly, the
    letters carrying the decisions of Coal India on the aspect of charges
    for linkage coal and the direction to use beneficiated coal were held
    to be statutory documents having the force of law. The press release
486                                                      [2024] 11 S.C.R.

                      Digital Supreme Court Reports


       of 01.10.2009 does not enjoy the same legal characteristics for the
       reasons already set out hereinabove.
67. Equally, for the same reason, the judgment in Energy Watchdog
    vs. Central Electricity Regulatory Commission and Others
    (2017) 14 SCC 80 will also not help the appellant. The appellant’s
    main reliance has been on Lloyd Electric and Engineering
    Limited vs. State of Himachal Pradesh and Others (2016) 1 SCC
    560. In Lloyd Electric (supra), the appellant therein was already
    enjoying the concessional rate in CST @ 1% up to 31.03.2009.
    Not only this, after the Cabinet note, a policy decision was taken to
    extend the period of concession up to 31.03.2013 or till CST was
    phased out. The Department of Industries had issued a notification
    extending concessions from 01.04.2009 to 31.03.2013 or till the
    time CST is phased out. The dispute arose because the Excise and
    Taxation Department issued a notification of 18.06.2009 granting
    benefit with immediate effect for the period ending 31.03.2013. It
    was in that context that this Court held that the State Government
    cannot speak in two voices and gave effect to the notification of the
    Industries Department so as to maintain continuity in exemption
    from 01.04.2009 and set aside the judgment of the High Court which
    denied exemption from 01.04.2009 till 18.06.2009 which was the date
    on which the Excise Department issued the notification. Unlike in
    Lloyd Electric (supra), in this case, there is only one voice of the
    government which has given the customs duty exemption for goods
    imported for use in thermal power plants, (without the requirement of
    the plant being an interstate power plant) with effect from 11.12.2009.
    The policy document also came on 14.12.2009. The press release
    of 01.10.2009 could not have been the basis for the appellant to have
    assumed that the notification of 01.03.2002 would stand amended
    and they would have the benefit from 01.10.2009 itself.
68. In Uttar Haryana Bijli Vitran Nigam Limited and Another vs.
    Adani Power (Mundra) Limited and Another (2023) 7 SCC 623,
    this Court held that the communication of 19.06.2013 in that case
    effected a modification to the mutual Fuel Supply Agreement and by
    force of the communication, transfer of coal, which was not allowed
    till then, was allowed between power plants. This Court held that
    the communication reflected the decision of the Coal India Limited
    which was an instrumentality of the Government of India. The said
    case has no application to the facts of the present case.
[2024] 11 S.C.R.                                                       487

                    Nabha Power Limited & Anr. v.
            Punjab State Power Coroporation Limited & Anr.

69. The judgment in Burn Standard Company Limited Vs. McDermott
    International INC and Anr. (1991) 2 SCC 669 also does not advance
    the case of the appellant. That case dealt with permission granted to
    an individual entity and whether on the facts of that case there existed
    a valid permission by the Reserve Bank of India. The issue involved
    in the present case is vastly different and we find the judgment in
    Burn Standard (Supra) of no relevance to this case.
70. The judgment closer to our facts is Maharashtra State Electricity
    Distribution Company Limited vs. Adani Power Maharashtra
    Limited and Others (2023) 7 SCC 401. In the said case, neither
    the decision of the Cabinet Committee on Economic Affairs
    dated 06.02.2013 nor the Press Release of 21.06.2013 was
    considered as the relevant date for change in law and only 26.07.2013
    which was the date on which the Office Memorandum was issued
    providing further instructions regarding the implementation of the New
    Coal Distributional Policy [NCDP] was considered as the change in
    law event. Pursuant to the Office Memorandum of 26.07.2013, the
    Ministry of Power issued a communication of 31.07.2013 setting
    out the decision taken. This case clearly supports the case of the
    respondent that the press release of 01.10.2009 on the facts herein
    could not have been the basis for the appellant to assume that a
    new legal regime had commenced in with effect from that date.
71. Though several judgments were cited, including Bachhittar Singh
    vs. The State of Punjab [1962] Supp. 3 SCR 713, to contend that
    the press release of 01.10.2009 was not an “order”, we do not
    propose to examine them as we are otherwise convinced for the
    reason set out above that the 01.10.2009 Press Release is not law
    under Clause 1.1. Equally, for that reason, we have not discussed
    the cases on Article 77 of the Constitution of India, dealing with
    authentication of orders.
72. The State Commission while rejecting the contention of the appellant
    has rightly recorded the following operative findings:-
          “In view of the above findings, the Commission holds
          that since the Mega Power Status was granted to the
          Project under the Mega Power Policy by the Ministry of
          Power on 30.07.2010 on the application dated 11.05.2010
          filed by the respondent no.1, having become eligible
          on 16.04.2010, the benefits, if any, accruing thereunder
488                                                        [2024] 11 S.C.R.

                           Digital Supreme Court Reports


                to the Project would be applicable only from 30.07.2010
                and not from any prior date, notwithstanding that the
                decision for granting the Mega Power Status was taken/
                announced on 01.10.2009 or the notifications in respect
                of the said decision of the Union Cabinet were issued
                by the concerned Ministries of the Government of India
                on 11.12.2009 and 14.12.2009.”
73. For the reasons set out hereinabove, we find no reason to interfere
    with the concurrent judgments of the courts below. The Civil Appeal
    is dismissed. No order as to costs.

       Result of the case: Appeal dismissed.



       †
           Headnotes prepared by: Nidhi Jain


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NABHA POWER LIMITED & ANR. versus PUNJAB STATE POWER COROPORATION LIMITED & ANR. — 2024 INSC 833 - Legal Desk AI