1) The document summarizes the plot of the film "Bipasha" which follows a son's desperate search for his mother after receiving a letter questioning his parentage. 2) It also follows the story of his love Bipasha, a half-Punjabi and half-Bengali woman, who tries to bring him back after he leaves their wedding ceremony to search for his mother. 3) Throughout the film the son searches from pillar to post for his mother while unraveling the mystery of his identity, and Bipasha tries to help him in his search while dealing with her own experiences after the partition of India.