The story begins with a wealthy man selling his entire estate in Africa, converting it to diamonds. He carries them in a belt and takes a flight to India. On the way, he suffers a fatal heart attack in the washroom, whilst in the throes of which, he requests a co-passenger to deliver the belt with diamonds to his son, Rajesh (Rishi Kapoor), who works in Ashoka Hotel, Delhi, as a singer-dancer-entertainer. The co-passenger happens to be a rich businessman named Kishorilal (Kamal Kapoor).