Aap Ki Kasam

Kamal Bhatnagar (Rajesh Khanna) is a jealous husband who begins to doubt the fidelity of his wife Sunita (Mumtaz) when his best friend Mohan (Sanjeev Kumar) enters their lives. Sunita is unable to convince Kamal that she loves only him. He leaves her, not knowing that she is pregnant with his child. Depressed and confused, Kamal becomes a homeless wanderer, while Sunita remarries to provide a secure home for her child. Many years later, the truth dawns on him as he turns up, a broken man, at his own daughters wedding.