Sunder (Raj Kapoor), Radha (Vyjayantimala) and Gopal (Rajendra Kumar) are childhood friends. Sunder is obsessed with Radha, who has eyes only for Gopal. In a freak twist, Sunder and Radha are married. But Sunder comes across a love letter written to Radha...
Did you know?
One of the features of the film that became widely used later on in Bollywood is the use of foreign locales for on-location shooting, such as Venice, Paris, and Switzerland for the film’s honeymoon sequence. This started the Bollywood trend of shooting songs sequences abroad (primarily in Switzerland), against the background of "exotic" landscapes. The speciality of the film was two intermissions.