It is an old classical family drama. Sundaram (Ramakrishna) is a rich businessman and he has an younger brother Sekhar (Chandra Mohan), a college going guy who loves his brother so much. Sundaram's mother-in-law Parvatham (S. Varalakshmi) who cares for his assets, shows her dominating character on Sekhar and Sundaram. She bets with Sekhar that she would separate him from his brother and puts some conditions that he should not tell his brother about the bet to prove his strength. Parvatham's second son-in-law (Chalam) identifies that his mother-in-law has moved to Sundaram's house. Soon the second son-in-law comes to the house and places a bet with Parvatham that she only should reveal that he is the son-in-law of her. Since then, both of them start proving their capacity to win the bet. The film revolves around who wins the bet and how it brings about a change in Parvathamma's beliefs.