Producer
With India ready to enter into the Atomic Age, several international gangsters get together to steal the secret for the benefit of other nations. This results in a bomb being planted on an airliner carrying Dr. Srivastava, the Chief Scientist, and the abduction of another, Khurana. The Indian Secret Service assigns this case to Agent 116, Gopal Kishan Pandey, who is just recovering from the death of his fiancée, Asha, who was killed by gunmen hunting for him. Gopal's investigation leads him to a young cabaret dancer, Bijli, who is the main contact between the international conspirators. Through befriending her, he learns that she is not who she claims to be, but is actually the daughter of Kedar, an employee of Daulatram, who had mysteriously disappeared. As Gopal delves more and more into this mystery, the fewer become his chances at successfully apprehending an enemy that is always elusive and a step ahead of the authorities.
Producer
While studying for his medical exams in Darjeeling, India, Amarnath Gill sprains his leg and seeks treatment from the local healer, Harihar Thapa. Amarnath is attracted to his daughter, Chanda, and both get intimate. Amarnath promises to return, but never does. About 25 years later, Amarnath returns to Darjeeling, driving an expensive Mercedes, hoping to relax. He casually makes inquiries about Chanda and her father, and finds out that Harihar passed away long ago; Chanda got pregnant and was hastily married to a aged and invalid man, gave birth to a baby girl, subsequently became insane, and died. He also finds out that Chanda sent her daughter, Kajli, away to another town to study and become a doctor. Amarnath is shocked and full of guilt at the injustice and anguish he has caused Chanda and her family. Then he gets to meet Kajli, who is not studying medicine - but earning her living in a brothel - as a foul-mouthed prostitute.
Producer
Agent 116 Gopal (Dharmendra) is assigned the case to solve the mystery behind the missing of young women in Bombay.