In the Bachan Singh v. State of Punjab (1980) case, the Supreme Court of India ruled that the death sentence should be imposed only in the "rarest of the rare" cases. The judgment laid down the principle that the death penalty would be appropriate in cases where the crime is of an exceptionally brutal, grievous, or heinous nature, such that the collective conscience of the community would demand it.
Thus, the correct answer is Bachan Singh v. State of Punjab.