Principle: Killing is not murder, if it is committed in a sudden fight without pre-meditation in a heat of passion upon a sudden quarrel.

Facts: X and Y were buying liquor from a liquor shop at 7 pm. Y abused X and there was quarrel between them. X told Y that he will not spare him and Y shouted that his house is adjoining the shop only and if X had the guts, he can come anytime. X went back to his shop which was nearby, procured a knife and went to Y‘s residence at 9 pm and stabbed him to death.