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West Bengal State Electricity Distribution Co Ltdv.Adhunik Power & Natural Resource Ltd & Ors

Citation:
2026 INSC 202
Date:
27 February 2026
Reading time:
10 min read

Synopsis

This Supreme Court judgment arises from a dispute between a power generator (APNRL) and a distribution company (WBSEDCL) concerning compensation for increased coal costs under a Power Purchase Agreement (PPA). The core issue was whether APNRL was entitled to compensation for (i) procuring coal from alternative sources due to delay in operationalizing its captive coal block, and (ii) the cancellation of its coal block by the Supreme Court in Manohar Lal Sharma, which it claimed was a "Change in Law" event. The Court partly allowed the appeal, upholding the entitlement to compensation for the Change in Law event (coal block cancellation) but denying compensation for the period before the cancellation, as the PPA's specific indemnity clause (Article 2.5) barred such claims for non-captive coal sourcing.


1. Basic Information of the Judgment

Case Title: Civil Appeal Nos. 2584-2585 of 2026 – West Bengal State Electricity Distribution Co. Ltd. vs. Adhunik Power & Natural Resource Ltd. & Ors.

Citation: 2026 INSC 202

Court: Supreme Court of India

Jurisdiction: Civil Appellate Jurisdiction (Article 136)

Coram: Chief Justice Surya Kant, Justice B.V. Nagarathna, and Justice Joymalya Bagchi

Nature of Bench: Three-Judge Bench

Date of Judgment: February 27, 2026


2. Legal Framework & Key Precedents

The judgment interprets contractual provisions in the context of the electricity sector and the coal block allocation scandal.

  • Primary Legislation & Agreements:
    Power Sale Agreement (PSA) dated 05.01.2011: Between WBSEDCL (Appellant) and PTC India Ltd. for supply of 100 MW power.
    Power Purchase Agreement (PPA) dated 25.03.2011: A back-to-back agreement between APNRL (Respondent No. 1) and PTC for onward sale of power to WBSEDCL.
    Article 10 of the PPA/PSA: Defines "Change in Law" events, which entitle the affected party to compensation to restore it to the same economic position as if the change had not occurred. Relevant clauses included:
    Article 10.1.1(b): A change in the interpretation or application of any law by a competent court.
    Article 10.1.1(f): Any change in law relating to mining laws affecting input cost or raw material.
    Article 2.5 of the PPA/PSA: A crucial indemnity clause. It stated that if the seller procures coal from alternative sources instead of the designated captive source, it shall not claim any separate escalation in energy charges. Such coal will be deemed to have been sourced from the captive source itself.

  • Key Judicial Precedent:
    Manohar Lal Sharma vs. Principal Secy. & Ors. (2014): The Supreme Court cancelled the allotment of numerous coal blocks, including the Ganeshpur block allocated to APNRL. This was the "Change in Law" event at the heart of the dispute.
    Anglo American Metallurgical Coal Pty. Limited vs. MMTC Limited: Cited for the principles of contractual interpretation, specifically that while a written contract's terms are primarily determined from the document, surrounding circumstances (attending facts) can be looked into to identify or make meaningful a term that is otherwise ambiguous or unworkable.


3. Relevant Facts of the Case

  • The Agreements: In 2011, a complex back-to-back arrangement was executed for the supply of 100 MW power. WBSEDCL entered into a PSA with PTC, which in turn entered into a PPA with APNRL for the generation and supply.

  • The Captive Coal Block: Although not explicitly named in the PPA/PSA, the Minutes of Meeting (03.01.2011) and subsequent correspondence (letter from WBSEDCL dated 30.04.2012) clearly established that APNRL's project was based on the Ganeshpur captive coal block (a joint venture with TISCO).

  • Delay and Alternative Sourcing: The Ganeshpur coal block was not operationalized on time. APNRL sourced coal under tapering linkage from Central Coalfields Ltd. (CCL) and, when that was insufficient, through costlier e-auctions and imports. It sought to pass on these additional costs, which WBSEDCL refused, citing Article 2.5.

  • The Change in Law Event (25.08.2014): The Supreme Court in Manohar Lal Sharma cancelled the allocation of coal blocks, including Ganeshpur. Subsequently, the Coal Mines (Special Provision) Act, 2015 was enacted, altering the allocation process. APNRL failed to regain the block.

  • CERC Order (29.01.2020): CERC held that APNRL was entitled to compensation for alternative coal costs pending the operationalization of the captive block, but denied the claim for Change in Law compensation. It remanded for further details.

  • APTEL Order (04.09.2025): APTEL reversed CERC on the Change in Law issue, holding APNRL was entitled to compensation for that event from 25.08.2014 with carrying costs. It also upheld the entitlement for the pre-cancellation period.


4. Issues Before the Supreme Court

  1. Whether the captive source of coal (Ganeshpur) could be identified from surrounding circumstances even though not explicitly named in the PPA/PSA.

  2. Whether APNRL was entitled to compensation for procuring coal through e-auction/import to meet the shortfall in tapering linkage before the cancellation of the coal block on 25.08.2014, in light of the indemnity clause in Article 2.5.

  3. Whether the cancellation of the coal block by the Supreme Court in Manohar Lal Sharma and the subsequent enactment of the Coal Mines (Special Provision) Act, 2015, constituted a "Change in Law" event under Article 10 of the PPA/PSA.


5. Ratio Decidendi & Court's Reasoning

The Supreme Court partly allowed the appeal. The core reasoning is as follows:

  • Identification of Captive Source: The Court rejected the Appellant's argument that the source was not stipulated. Applying the principles from Anglo American Metallurgical Coal, it held that surrounding circumstances (Minutes of Meeting, WBSEDCL's own letter) could be used to identify the "captive source" referred to in Article 2.5. WBSEDCL, being a party to those communications, could not now dispute that Ganeshpur was the intended source.

  • Article 2.5 Bars Pre-Cancellation Compensation: The Court held that APTEL erred in granting compensation for the period before 25.08.2014. The delay in operationalizing the coal block was a risk borne by APNRL. Article 2.5 was a specific indemnity clause designed precisely to protect WBSEDCL from any cost escalation arising from APNRL procuring coal from alternative sources instead of the captive one. To allow compensation for this period would render Article 2.5 meaningless. The Court distinguished GMR Kamalanga, noting that the PPA in that case did not have a clause akin to Article 2.5.

  • Cancellation of Coal Block is a "Change in Law" Event: The Court upheld APTEL's finding on this issue. The Supreme Court's judgment in Manohar Lal Sharma constituted a "change in the interpretation or application of any law" under Article 10.1.1(b). The subsequent enactment of the Coal Mines (Special Provision) Act, 2015, was a "change in law relating to mining laws" under Article 10.1.1(f). This event materially affected APNRL's right to procure coal from its designated source. The Court held that Article 2.5 and Article 10 operate in different fields. Article 2.5 covers voluntary or operational delays in using the captive source. Article 10 is triggered by a supervening legal event that makes the use of that source impossible. Once the Change in Law event occurred, APNRL was entitled to compensation from that date (25.08.2014) onwards.


6. Legal Principles Established & Clarified

This judgment provides important clarifications on contract interpretation and the interplay of specific clauses:

  • Surrounding Circumstances to Identify Contractual Terms: It reaffirms that while the terms of a written contract are paramount, surrounding circumstances (attending facts) can be used to identify the subject matter of a term (e.g., which coal mine is the "captive source") and to give meaning to terms that would otherwise be ambiguous. This is not an exception to the parol evidence rule but an application of it.

  • Specific Indemnity Clause Prevails Over General Hardship: A clear, specific indemnity clause like Article 2.5, which allocates the risk of cost escalation from alternative sourcing to the generator, will be enforced. A generator cannot claim compensation for such costs simply because the delay in using the designated source was due to factors beyond its control. The contractual allocation of risk is binding.

  • "Change in Law" vs. Operational Delay: The judgment draws a sharp distinction between risks inherent in the project's operation (like delay in starting a mine) and risks arising from a fundamental change in the legal framework (like cancellation of a coal block by a court). The former is a commercial risk allocated by the contract; the latter is a "Change in Law" event triggering a separate compensation mechanism.


7. Judicial Examination & Analytical Concepts

  • Harmonious Construction of Contractual Clauses: The Court harmoniously construed Article 2.5 and Article 10, giving full effect to both. It held they operate in distinct spheres, ensuring that one does not negate the other. This is a key principle of contractual interpretation.

  • Text and Context: The Court balanced the text of the agreement with its commercial context. While Article 2.5 did not name the mine, the context provided by the minutes and subsequent letters made it clear.

  • Doctrine of Contra Proferentem (Implicit): While not explicitly named, the Court's refusal to accept WBSEDCL's argument that the captive source was not identified can be seen as applying a principle akin to contra proferentem. WBSEDCL, having drafted or been party to communications identifying the mine, could not later use its absence from the PPA to its advantage.

  • Allocation of Commercial Risk: The judgment is a classic example of a court respecting the allocation of commercial risk as agreed upon by the parties in a contract. The risk of pre-operational delays was on APNRL; the risk of a supervening legal change was to be shared via the Change in Law clause.


8. Critical Analysis & Final Outcome

  • Final Decision & Directions:
    The Supreme Court partly allowed the appeals.
    The APTEL order dated 04.09.2025 was set aside to the limited extent that it granted compensation for procurement of coal through e-auction/import to meet the shortfall in tapering linkage before the cancellation of the coal block.
    The portion of the APTEL order awarding compensation on account of Change in Law events with effect from 25.08.2014 (the date of the Manohar Lal judgment) along with carrying costs till actual payment was upheld.
    The Court noted that CERC had already passed a consequential order on 11.02.2026, which was to be given effect to in light of this judgment.

  • Significance & Impact:
    Clarity for Power Sector PPAs: This judgment provides crucial guidance for the interpretation of standard PPA clauses in India, particularly the interplay between clauses dealing with fuel sourcing and "Change in Law." It will impact numerous similar disputes arising from the coal block cancellation saga.
    Respect for Contractual Allocation of Risk: It reinforces the principle that courts will respect the manner in which commercial parties have allocated risks in their contracts. A party cannot use a "Change in Law" clause to claim compensation for risks it explicitly agreed to bear (like sourcing fuel from a designated mine).
    Fair Compensation for Supervening Events: It affirms that where a fundamental, unforeseen legal change occurs (like a Supreme Court judgment invalidating a coal block), the "Change in Law" clause is triggered, and the affected party is entitled to compensation to restore its economic position.

  • Critical Viewpoint: The judgment is a nuanced and well-reasoned decision that carefully balances the competing interests of the parties. By upholding the specific indemnity in Article 2.5, it protects the distribution company (and ultimately consumers) from bearing the cost of the generator's operational delays. By simultaneously upholding the Change in Law compensation from the date of the Manohar Lal judgment, it ensures the generator is not unfairly penalized for a supervening legal event beyond its control. The clear distinction drawn between the two periods is legally sound and commercially sensible. This judgment will serve as a key precedent for interpreting long-term infrastructure contracts.


(MCQs)


1. Under which clause of the Power Purchase Agreement (PPA) did the Supreme Court hold that the generator (APNRL) was not entitled to compensation for the period before the coal block was cancelled?
a) Article 10.1.1(b)
b) Article 10.1.1(f)
c) Article 2.5
d) Article 2.2


2. According to the Supreme Court, what constituted the "Change in Law" event that entitled APNRL to compensation?
a) The delay in operationalizing the Ganeshpur coal block.
b) The procurement of coal through e-auction.
c) The Supreme Court's judgment in Manohar Lal Sharma cancelling the coal block allotment.
d) The letter from WBSEDCL dated 30.04.2012.


3. Which case was relied upon by the Supreme Court for the principle that surrounding circumstances can be used to identify the subject matter of a term in a written contract?
a) Innoventive Industries vs. ICICI Bank
b) Anglo American Metallurgical Coal Pty. Limited vs. MMTC Limited
c) Associated Hotels of India vs. R.N. Kapoor
d) GMR Kamalanga Energy Ltd. vs. CERC


4. What was the effective date from which the Supreme Court upheld the compensation for the "Change in Law" event?
a) 05.01.2011 (date of PSA)
b) 25.03.2011 (date of PPA)
c) 25.08.2014 (date of the Manohar Lal judgment)
d) 04.09.2025 (date of the APTEL order)

View full judgment (PDF)