Sunder Khanna, an orphan from India, falls deeply in love with Radha, a wealthy girl, but she and her parents reject him. Determined to prove himself worthy, Sunder joins the Indian Air Force and risks his life to help army soldiers, only to disappear and be presumed dead. He returns, seemingly unscathed, and gets married to Radha. During their honeymoon, they travel to Europe, and Sunder invites his friend Gopal, now a Magistrate. However, a love letter to Radha from an unknown man shatters Sunder's happiness, leading him to confront Radha and seek revenge.
Sangam
A war-weary pilot returns home, only to discover that his sweetheart has been secretly engaged to his best friend, a revelation that threatens to upend his newfound happiness.
