An auto driver, Manikam, desperately tries to hide his dark underworld side to keep his promise to his father.

An auto rickshaw driver whose sole aim in life is to fulfill the promise of his late father, runs into trouble when an old rival returns from prison and threatens to destroy his family, forcing him to reveal his dark past and reignite the same war which he had kept aside for years.—Santhosh

Auto-rickshaw driver Manickam (Rajnikant) is a do-gooder who avoids violence at all costs. Manickam romances rich kid Nagma, whose father is a criminal, and knows a dirty secret about his would-be son-in-law. Manickam's brother, a righteous police officer gets into trouble with the local goons, triggering a set of events that revive Manickam's old self.—Joyojeet Pal