Bharati International

Agent 116 Gopal (Dharmendra) is assigned the case to solve the mystery behind the missing of young women in Bombay.

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.

Gopal is constantly haunted by the tragedy that took place in his childhood. His youthful elder sister Sita and his younger brother Jagan were abducted by villainous Gulshan and his men. Gopal's mother dies with this shock, before innocent Gopal's eyes. This tragedy leaves a deep and an unerasable scar on Gopal's heart and mind. Revenge becomes his motto.