In which case did the Supreme Court hold that the audi alteram partem rule (hear the other side) enforces the equality clause under Article 14 and applies to administrative orders adversely affecting a party?

Correct option is B

In Delhi Transport Corporation v. DTC Majdoor Union, the Supreme Court held that the audi alteram partem principle is fundamental to fairness and Article 14, extending even to administrative decisions.
Information Booster:
· Audi Alteram Partem ("hear the other side") is a key principle of Natural Justice.
· Administrative actions that adversely affect rights must give a reasonable opportunity to be heard.
Additional Information:
· Article 14 guarantees equality before law and equal protection of laws.
· Courts have expanded Article 14 to cover not just legislative action but also executive and administrative actions.