sumathi gets angry and slaps him for trying to take advantage of her situation and makes it clear that in her life there is place only for dayaparar. sundar is shocked at her rejection. gopu comes to know about sundar's situation and operates on sundar's eyes and he gets back in eyesight. gopu takes sundar to his house to unite him with sumathi. reaching there, sundar is shocked to see the portrait of his father with a garland and realises that sumathi has actually married his father and is now his stepmother. he feels guilty and rushes to apologise to his father, but it was too late as dayaparar has died. sumathi and her family are shocked to know that sundar's father was dayaparar. dayaparar had left a letter to sumathi in which he apologises for marrying her and asks sumathi to live on her own terms. sumathi reconciles herself to live as a mother to sundar than remarrying and he also appreciates that and calls her as his mother. sundar goes abroad to continue his studies with his stepmother's blessings.