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Transmission Corporation of Andhra Pradesh Ltd. & Ors. v. M/s GMR Vemagiri Power Generation Ltd. & Anr.

Civil Appeal · 2018 INSC 162Decided 16 Feb 2018
Civil Appeal No. 8747 of 2014
Justice Rohinton Fali Nariman · Justice Navin Sinha

Background

A power generation company and the Andhra Pradesh electricity distribution utility were bound by a Power Purchase Agreement (PPA) that, after several amendments, restricted the fuel used to generate power to "natural gas only." When the originally allotted natural gas supply from the KG-D6 basin became scarce, the generator sought to use the costlier Regasified Liquefied Natural Gas (RLNG) instead, arguing it was simply a form of natural gas. The Andhra Pradesh Electricity Regulatory Commission held that "natural gas only" did not include RLNG, but the Appellate Tribunal for Electricity reversed this, holding RLNG was merely a variant of natural gas and not excluded by the PPA's wording. The distribution utility appealed to the Supreme Court.

Decision Breakdown

The Supreme Court held that a commercial contract must be interpreted according to the real intention of the parties as reflected in its text and history of amendments, and courts should not read in additional terms unless necessary for "business efficacy." Tracing the PPA's amendment history, from Naphtha as primary fuel, to natural gas as primary fuel, to the final 2007 amendment restricting fuel to "natural gas only", the Court concluded the parties had deliberately intended to confine the agreed fuel to natural gas in its natural form, excluding costlier variants like RLNG, because the underlying purpose was to keep power generation costs (and ultimately consumer tariffs) low. The Court held this intention could not be overridden merely because RLNG is chemically similar to natural gas, and that a generic statutory definition of "natural gas" from an unrelated regulatory law had no bearing on how the specific contractual term should be read. Accordingly, the Supreme Court reversed the Appellate Tribunal's judgment and restored the Regulatory Commission's original order holding that RLNG was not covered by the PPA.

Lesson Learnt

The specific wording a contract uses, understood in light of how the parties amended and dealt with that contract over time, controls its interpretation: a party cannot later claim a broader meaning (e.g., treating a chemically similar substitute as covered) simply because it suits them, if the contract's own history shows the parties intended a narrower, specific meaning.

Official source (sci.gov.in)View Judgment (PDF)

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