Motilal Padampat Sugar Mills Co. Ltd. v State of Uttar Pradesh

Facts

Following the U.P. Government's announced policy granting a three-year sales tax exemption to new industrial units, the appellant sought confirmation and received a categorical written assurance from the Chief Secretary (letter dated 23 January 1969) that its proposed Vanaspati factory would enjoy total exemption from sales tax for three years from the start of production. Relying on this representation, the appellant borrowed funds, purchased machinery and set up the factory. The Government later resiled, first offering only partial concessional rates and then, by an announcement in August 1970, withdrawing even that concession. The appellant challenged the withdrawal, invoking promissory estoppel.

Issues

• Whether the doctrine of promissory estoppel can be invoked against the Government and its officers acting within their authority.
• Whether the Government could resile from its representation by pleading executive necessity or absence of a formal notification under Section 4A of the U.P. Sales Tax Act.
• Whether the appellant had waived its right to full exemption by accepting the partial concession.

Arguments

The appellant contended that the Chief Secretary's unequivocal assurance was made within authority and with knowledge that it would induce reliance, that it acted on it by making substantial investment, and that no valid waiver had occurred since waiver requires full knowledge of one's rights and was not even properly pleaded. The State contended that promissory estoppel cannot fetter governmental discretion, that no formal notification under Section 4A had been issued, that executive necessity permitted a change of policy, and that the appellant had waived its claim by accepting concessional rates.

Held

The Supreme Court allowed the appeal. It held that promissory estoppel is a well-established equitable doctrine that operates against the Government in the same way as against a private individual: where the Government, by an unequivocal promise within its authority, intends the promisee to act upon it, and the promisee in fact alters his position in reliance, the Government is bound to honour the promise if it would be inequitable to allow it to resile. The Court rejected the plea of executive necessity, holding that the Government cannot claim immunity merely to keep its future executive action free; if it wishes to preserve such freedom it should not make binding promises knowing they will be relied upon. The waiver plea failed because it was neither properly pleaded nor founded on full knowledge of rights, and waiver cannot be inferred without an intentional abandonment of a known right. The doctrine, however, cannot compel the Government to act contrary to a statutory prohibition or to fetter legislative power.

Ratio decidendi

Where one party, by words or conduct, makes a clear and unequivocal promise intending it to create or affect a legal relationship and knowing it will be acted upon, and the other party in fact alters his position in reliance, the promise is binding and the promisor cannot go back on it if it would be inequitable to do so, irrespective of any pre-existing contractual relationship. This doctrine of promissory estoppel applies fully against the Government, and neither executive necessity nor the absence of a formal contract under Article 299 is a defence; only a genuine statutory bar or public-interest equity can override it.

Significance

A foundational Indian authority on promissory estoppel, decisively holding the State bound by its representations and rejecting executive necessity as a shield, thereby advancing public-law equity and government accountability. It has been consistently followed and refined (e.g., Union of India v Godfrey Philips India Ltd and Pournami Oil Mills) and remains good law, though later cases clarified that the doctrine yields to overriding public interest and cannot defeat statutory provisions. The case concerns promissory estoppel, an equitable doctrine that is conceptually distinct from the rule of estoppel by representation in Section 115 of the Indian Evidence Act, 1872, now re-enacted as Section 121 of the Bharatiya Sakshya Adhiniyam, 2023; the BSA retains the IEA estoppel scheme without altering this distinction, so the principle of this case continues to operate independently of the codified evidentiary estoppel.

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