Kasauti

Kasauti is a 1974 Bollywood drama film directed by Aravind Sen. The film stars Hema Malini and Amitabh Bachchan.

Amit Amitabh Bachchan, an educated taxi driver saves Sapna from the clutches of Heera but soon she is accused of attempting. Sapna is sent to prison for six months. Sapnas mother Sulochana Latkar in a fit of anger kills Sapnas foster father. Amit promises to marry Sapna on her acquittal but on the eve of their marriage Amits father Murad refuses to accept it. Not wanting to break up Amits family Sapna quietly walks out of his life and leaves the city.Amit and his friend Pyarelal Pran search for Sapna but do not succeed. In Calcutta, Sapna becomes an instant hit on the stage through Ashok Babu Vijay Sharma. One day, Ashok proposes to her. Does Sapna climb down from her ladder of fame and return to her poor past? Or does she marry Ashok and opt for a life of fame? ........

Source: Wikipedia