The film stars Amitabh Bachchan, Sanjeev Kumar, Parveen Babi, Vinod Mehra, Prem Chopra, Mehmood, Bindiya Goswami and Tanuja in pivotal roles.
Govind(Amitabh Bachchan) takes on the responsibility of providing for his brother's education by becoming the taxi-driver Chhotu Ustad.
Rajesh, however, is ambitious and foppish, and spurns his brother and the latter's pride by marrying the rich Seth Verma's daughter Manju and becoming a ghar jamai.
Bansi, cornered, attempts to shoot Hari and escapes the courtroom, but is finally tracked down by Govind in his beloved taxi 'Basanti'.
During production, the film ran into financial trouble, and after Mehmood refused to help Ali with the financing, he resorted to partnering with F.K.