Arun Varma (Rajesh Khanna) is a pilot and is married to Vandana (Sharmila Tagore). Soon after their marriage, he dies, leaving her pregnant. Since their marriage was a secret, his family refuses to accept her and the child. Ultimately, she is forced to let a childless couple adopt her child, but continues to serve as his nanny to stay close to him. One fine day, her employer's brother, Shyam (Manmohan), tries to molest Vandana. Her son, Suraj, arrives and stabs Shyam to death. However, Vandana takes the blame and is sentenced. Years later when she is released, she comes across Suraj (Rajesh Khanna) (who has forgotten everything). Will he be able to remember his nanny?