Sitharam (Arjun) is a well respected auditor who lives with his PA Muthuswami (Anu Mohan) in Chennai. Although being a short-tempered and tensed person, Sitharam is very good at heart who helps the people in need. He soon meets and falls in love with Kalyani (Sonali Bendre). After a couple of meetings she too falls in love with him by seeing his good nature.
But Sitharam faces problems in the form of another loving couple, Akash (Suchindra) and Akhila (Ruchita) due to an argument between Akhila and Akash and Akhila acts as Sitaram’s fiancé so that she can get rid of Akash just before he proposes to Kalyani. Kalyani, being an innocent, believes her words and goes away from Sitharam. Hence, Sitharam becomes the main antagonist of the film to make the lives of Akash and Akhila the living hells.