Watch Sangam for Free: How to Stream the Movie Online at 123Movies. . Sunder Khanna is an orphan and lives a poor lifestyle in India. He is friendly with wealthy Gopal Verma, the only child of Judge Verma; and a wealthy girl named Radha, who is the daughter of an army Captain. The trio grow up, and Sunder falls head-over-heels in love with Radha, but she as well as her parents reject him.