Satyameba Jayate (2008)

Satyameva Jayate is the story of a traffic constable who witnesses a murder committed by a politician's son in day light and the reactions he had to face when he tries to bring the culprits to book. As a bunch of dishonest bureaucrats and corrupted cops acts against him, he had to turn into the long-haired, local goon Pandiya to take revenge.