Mahendran, seeing an advertisement placed by Bhairavi about her missing daughter, comes to meet Bhairavi at her house and sees Prasanna's photograph there. He realises they are in love. Mahendran advertises for his missing son. Bhairavi sees the advertisement so she tells Prasanna to get his father's consent before marrying her. They both meet Mahendran, who introduces Ranjani as Prasanna's future mother since she is his future wife. A riddle is explained: Prasanna's wife will be the mother of his father's wife, meaning Ranjani will be the mother-in-law of her own mother and Mahendran will be the son-in-law of his own son. Mahendran asks Prasanna how this riddle is going to be cleared in their case.