This is story of business man Ashok Mehra (Rajesh Khanna), his wife Neena Mehra (Rekha) who is expecting their child. She dies after giving birth to young Mini (Baby Shabana). Ashok Mehra ask his photographer, Raj Bedi (Raj Babbar) to employ a model for advertisement of his cosmetic product in foreign countires. Bedi employs Radha (Rekha) who incidentally bears striking resemblance to Ashok's late wife. Bedi falls in love with her and marries her. But then tragedy strikes when Bedi is struck by paralysis due to an accident and Radha has to work for Ashok as governess to bring up his daughter. Ashok however does not know that Radha is married and he gets slowly attached to her. On the other hand, Bedi who was frustrated that his wife has to work begins to suspect his wife. Radha by this time has become quite close to the child and cannot think of being apart from her. So now Radha has to decide between her for husband and her love for the child.