A rough-around-the-edges mechanic takes it upon himself to save the members of a family from the clutches of a gang of criminals.

Dr Vaseegaran creates a robot, Chitti, for the Indian army. However, Chitti puts his and his fiancee's lives at risk when a rival scientist manipulates him into taking over the world.

Babu, a criminal, changes his ways when he finds a baby who survived a train crash and raises him as his own. However, things take a turn when his criminal past catches up to him.

Ganga and her son, Shiva, try to avenge their family against an evil landlord, Sarang. Shiva befriends Sarang's daughter, Chand, who hates him at first but gradually falls in love with him.