Starring Sanjeev Kumar and Deven Verma in double roles, it is directed by Gulzar.

[6] The film is about two pairs of identical twins separated at birth and how their lives go haywire when they meet in adulthood.

Raj Tilak (Utpal Dutt) and his wife (Shammi) are on a trip with their twin sons, both of whom they call Ashok.

An unfortunate accident then divides the family, leaving each parent with one child out of each pair of twins.

Into their lives enter the other Ashok, a detective novel aficionado, and Bahadur, a bhang (an edible preparation made from the leaves of the cannabis plant) lover.