Selvarasu is the head of his family, and his two brothers Thangarasu and Chinnarasu are ready to give up their lives for him. The three brothers are very fond of their sister Rasamani. A rich man from the neighboring village Chinniyampalyam Zamin Rangarajan, feels insulted when Thangarasu mishandles his son Aakash during a temple festival, and to take revenge, he comes with a wedding proposal to make Rasamani his daughter-in-law. At the time of the wedding, the groom's family demands the entire wealth of Selvarasu to be transferred to Rasamani as the dowry, for which Selvarasu and his brothers agree. The brothers are insulted at every opportunity, while Rasamani is also ill-treated by her husband and father in law.

Selvarasu is married to Lakshmi, while Thangarasu is married to his cousin Durga and Chinnarasu is in love with his classmate Priya. Rasamani conceives but still undergoes the torture of her family. Chinnarasu's wedding is arranged with Priya, and the brothers eagerly await for the arrival of Rasamani for the wedding. However, Rasamani is locked up in a room by Aakash, who is not permitting her to attend the wedding. Aakash also injures her feet while she tries to escape from her house with plans of attending the wedding. The brothers come to Rasamani's home requesting her to come for the wedding and are shocked to know that she is hurt and locked in a room. The brothers fight Aakash's goons. Rasamani gets furious and decides to end her relationship with Aakash. She removes the thaali and throws on the face of her husband and decides to go with her brothers. In the end, Aakash and his father reform and accept Rasamani and her brothers.