Gair Kanooni (1989)

Police Inspector Kapil Khanna is a honest and diligent officer with Bombay Police Force. He lives a middle-class life with his pregnant wife, Devi. When Devi gives birth to a baby boy, Kapil and Devi subsequently find out that the child has been switched with a baby girl, Lakshmi. Kapil suspects that the owner of the hospital, Robert Decosta, had a hand in the child's abduction and launches a law suit against him and the hospital. Devi, unable to bear the loss of her child, has heart failure and passes away.

Kapil refuses to look after the baby girl, and the Court asks a woman named Bantho to look after her with Kapil being responsible for monetary care of the child. Now twenty years have passed and the case is still pending in the courts, Kapil is now the Police Commissioner and still continues to be honest and diligent.

Then he finds out that his missing son is none other than Om Narayan Juthawala, living with Dalal and Asha Juthawala, who he believes are his parents. Kapil will do anything to meet his son, which includes giving up him his honesty, and if necessary join the forces of evil. Kapil must also deal with Akbar Khan, the son of Adam Khan, who believes that Kapil was responsible for his father's death.