Dhana (Sumanth) is a dynamic graduate who mingles with his ex-college students. His lifetime ambition is to become a cop. He wants to become cop genuinely without giving any bribes. He befriends a beautiful girl Lakshmi (Saloni), who happens to be the daughter of honest and most powerful Police Commissioner Mahesh Chandra (Mukesh Khanna). Dhana and Lakshmi become best buddies over a period of time. Dhana gets fed up with bribery system in police selections and he decides to start a musical instruments shop to make a living.The rest of the story is all about how Dhana 51 proves himself innocent and get back to Lakshmi.