En Annan

Rangan MGR the very loving brother of Thangam though only a cart puller dreams of educating his sister to become a doctor So when he learns of his sisters love with Murali Muthuraman a doctor he gets them married in a grand manner Muralis mother after their marriage learns that Thangam is the daughter of Velappan her husbands mill owner Karunakaran murderer Thangam is thrown out of the house Rangan finds out that his father who is still languishing in jail had been falsely implicated He vows to bring the real culprits to book His fiancé Valli Jayalalitha helps him nab the murderers It is proved at last that justice always wins