dayaparar's friend (m. r. santhanam) advises him to remarry to get over his sorrows as he is alone after the death of his son, to take care of his health. he meets sumathi's father and seeks her hand for dayaparar and mentions that all his property will be left for sumathi after he dies as he is alone. sumathi agrees to the marriage to support her family and settle gopu's loans, though both her father and nalina do not accept her plan. on the wedding day, sumathi's father passes away, unable to see his daughter marrying an old man. that night, dayaparar realises that his son sundar and sumathi were lovers earlier. brokenhearted, he leaves home writing a letter to sumathi in which he leaves all his wealth to her and gives her the freedom to choose a life of her own (to remarry). dayaparar wanders around visiting temples and holy places and in one of the temples he sees sundar begging – being blind he did not want to be burden to his father and hence was living alone. father and son rejoin. gopu returns to sumathi's house as a reformed man and starts his medical practice again. he dreams of his sister remarrying, but sumathi still thinks of dayaparar as her husband.