Gajendran is a small-time crook who lives in a slum. In the past, his father was a labourer and a communist activist. His superior killed his father, and his innocent mother Rajalakshmi was sent to jail for her husband's murder. Gajendran was then born in jail. Being born in jail, he is treated as a crook by society and he decides that if that is what they want him to be, he will be one. He will do anything for money. Gajendran takes the
IPS exam as a joke, cheats and passes it. He becomes a police officer again cheating his way through the training and other aspects but then takes bribes from everyone, even the poor. He is reformed when one of the honest constables, on the day of retirement, loses his life trying to stop a jail break which he could have easily ignored. On the same day, anti-corruption officers raid Gajendran's house and find a lot of money there. At the court, Shenbagam, who is deeply in love with Gajendran, decides to save him, so she lies to the judge that she was a prostitute and had earned a lot of money. She then commits suicide. This reforms him and makes him realises that all actions have consequences. Thereafter, he falls in love with the police officer Meena. Later,
MLA Muthulingam burns Gajendran's slum to collect some votes. Gajendran marries Meena and finally decides to fight against the corruption and in the end, kills them all unable to render justice legally. == Cast ==