Tyaag (1977)

Chetan and Sunita are in love and would like to get married. With blessings from their respective parents, they do get married and live a fairly harmonious life. They are blessed with the birth of a son, and their joys know no boundaries. Then Chetan finds out that Sunita is having an affair with another man, acrimony and bitterness arise, and they decide to divorce, Sunita taking the boy with her. Will Chetan and Sunita be reunited in this lifetime?