Pallavi,an orphan Christian girl,lives in a convent and she wants to become a nun. She is sent to a village for becoming a nun. She joins,the church's father,Vincent Ramkumar Ganesan and she works as a doctor until she becomes a nun. She meets Prabhu,an innocent youth,and they fall in love with each other. R. P. Viswam brings up his son Prabhu without any affections and treats him like his worker,only his mother Vadivukkarasi loves him. When R. P. Viswam arranges Prabhu's marriage with his niece,Prabhu and pallavi reveal their love. R. P. Viswam prepares the puberty ceremony of Raasi,Prabhu's niece,and manages to hide a Thaali inside a flower garland. Prabhu,as an uncle,puts the flower garland around Raasi's neck and he gets married with her without knowing. Church father complaints against R. P. Viswam for arranging a child marriage but the complaint is withdrawn. The rest of the story is what happens to Prabhu and Pallavi.