Watch Kaivantha Kalai
This movie is about the story of a young boy named Kannan, who is fooling many of the people in his village along with his father. One day, Kannan falls in love with a girl named Kausalya, who is a shy, Brahmin girl. Later on, Kannan's grandfather finds out that Kausalya's mother is surprisingly his father's sister, which makes him determined to marry her. Kausalya begins to develop feelings for Kannan, but she orders him to clean up his act before they get married.