Bhoominathan aka Bhoomi is introduced to us as a person who gets into many local fights. Worried about his future, his family sends him to Muthuramalingam (Raj Kiran), a much respected personality in his place Semmanur, to put Bhoomi's life on the right track. But things don't go as planned. Muthuramalingam's adversary threatens to kill his daughter Meera (Asin) as a revenge against his own daughter's fate. So Bhoomi is given the job of Meera's bodyguard at college. Meera goes to college with her friend Madhu but is irritated by Bhoomi's presence everywhere. So she devises a plan.
Kaavalan
Meera starts calling bhoomi, her bodyguard just to fool him by telling him she loves him. Problems arise when bhoomi falls in love with her not knowing who she is.
