Inadmissibility of challenging undisputed contractual agreements after prolonged delay

Apartment buyers who execute formal agreements explicitly acknowledging that a residential project is to be constructed on a specified portion of the total land cannot subsequently turn around to challenge the arrangement after a lapse of many years. When a builder-buyer agreement clearly records that the residential complex comprises a defined acreage in Phase-I while the remaining land is reserved for alternative development, the purchasers are bound by the terms explicitly accepted. Raising belated allegations of coercion, misrepresentation, or concealment of facts nearly a decade after execution, without any foundational pleadings in original plaints, is entirely untenable in law. Courts must uphold the sanctity of written contractual undertakings rather than entertaining belated and speculative challenges raised by purchasers for collateral objectives. (Raj Singh Gehlot & Ors. v. Amitabha Sen & Ors. | 2026 INSC 77)