Bhola (Rajesh Khanna), a young musician, leaves for the city to earn money for his sister Belu's (Kumari Naaz) marriage. However, as soon as he enters the city, people around him identify him as Ranjit. When Ranjit meets Bhola, he decides to train the naive Bhola, to fool the Police. Inspector Pradhan (Vinod Khanna) sends an undercover cop Leena (Mumtaz) to apprehend Ranjit. But as fate would have it, Meena gets charmed by Bhola and they fall in love. Things go as planned for Inspector Pradhan and he entraps Ranjit. Now Pradhan must identify the real Ranjit and punish him. Watch out for the exciting climax.