Pyaar Diwana Hota Hai is a romantic comedy drama. The movie follows the story of a simpleton named Sunder (Govinda), who comes from a village and is naïve and illiterate. When he tries to impress a girl, he is mocked by them and made fun of by everyone. He finally meets an NRI girl named Payal (Rani Mukerji) and pretends to be dumb. Compassionate Payal befriends Sunder and decides to assist him to get his voice back. Sunder continues his act, but what will happen when Payal finally finds out the truth?