Classic Bollywood romance. When dashing pilot Arun (Rajesh Khanna) romances Vandana Tripathi (Sharmila Tagore), Vandana becomes pregnant and the couple have a quiet temple wedding ceremony before Arun leaves to re-join his duties. Unfortunately, Arun is killed, and Vandana is unable to convince anyone of her marriage to him, and in these circumstances must re-locate to hide her shame. She gives birth to a baby boy, whom she has to place in an orphanage, and then adopt back. Unfortunately for her, the boy is adopted by someone else. She manages to find out the adopted family's whereabouts, and gets a job in their home as a servant. When she is about to be molested by one of their relatives, Shyam (Manmohan), her now grown-up son Suraj (also played by Rajesh Khanna) witnesses this, and kills him. Vandana takes the blame for this killing and is sentenced to imprisonment, leaving her son and her life behind for a crime she did not commit.