Indian Peace Keeping Force personnel Major Bala, while fighting in the jungles of war-torn Sri Lanka, loses his right leg in an explosion triggered by Tamil militants. Elsewhere, Manohar, a film director, is greeted at a filming location by his parents, who want him to marry Swetha, so that he will inherit her family's company. Sisters Sowmya and Meenakshi are part of a close-knit family living in a Chettiar mansion in Karaikudi, Tamil Nadu, with their mother Padma, maternal grandfather Chandrasekhar, servant Chinnatha and younger sister Kamala. Sowmya is a school principal while Meenakshi is passionate about classic Tamil poetry, music and dance. Sivagnanam, a friend of Bala, lives with his mother. His mother is having breathing issues, which is fixed as soon as he says the word marriage. After his mother wants to see a marriage, Sivagnanam shows two cats, Raj and Viji, getting married much to her dismay.
Bala, who now runs a floral business, has become a depressed and alcohol-dependent man since losing his leg but he quits drinking after an argument with Meenakshi, with whom he falls in love and supports her family when in need. At her behest, he stops drinking in exchange for her to learn music, which she does. Meenakshi, who, considers Bala as a friend, falls in love with Srikanth, a charming businessman who shares Meenakshi's interests. Manohar visits Meenakshi's house for a film shoot where Sowmya and Manohar fall in love with each other.