The story is about twin princes Manivannan and Karikalan who seek to avenge their father's death at hands of King Marthandan. The twins are separated. But Karikalan can feel whatever feelings Manivannan is in. Karikalan wanted to avenge those people who have set fire to his castle. One of them is brought up by Arunakiri while the other is brought up by Marudhu. One is educated preferring to use brains over brawns while the other is an adept fighter. They both plan and execute the downfall of Marthandan.