Saraswathi “Yamuna” (Suvalakshmi), one of two daughters of an Orthodox father (Poornam Vishwanathan), comes to Madras for finishing her studies. Major Madhavan (Prakash Raj) is the husband of Yamuna’s elder sister Ganga (Rohini), who infatuates about Yamu

Kousalya falls in love with Ganesan, a bus conductor who works for her father. However, she is shocked when a woman named Thulasi accuses Ganesan of destroying her life.