Chettathi is a Malayalam language film. It was released in 1965.The film was directed by S R Puttanna, starring Ambika, Prem Nazir, Sathyan, Thikkurissy Sukumaran Nair in the lead roles. Music of this film was done by M S Baburaj. It tells the story of a young widow.
Premachandran(Sathyan)is the elder son of Master(Thikkurissy Sukumaran Nair).Nirmala(Ambika)is his fiancée.Premachandran who is working in a factory at Coimbatore comes home after a long time for their marriage.Prabhakaran(Prem Nazir) is Premachandran's younger brother who is in love with Vasanthy.After marriage Premachandran returns to work leaving Nirmala at his home.Nirmala takes good care of her father-in-law and brother-in-law and gains their love.Meanwhile Premachandran meets with an accident at work and dies.This shocks the whole family.Gopi,Prabhakarans's colleague who is a womanizer develops a love interest towards Nirmala and propose her.But she denies.Prabhakaran's love and respect towards Nirmala is misunderstood by his father.Nirmala with broken heart leaves home and joins her sister Susheela and husband Viswanathan.Prabhakaran who refused to marry, gets married at the request of Nirmala.Prabhakaran gets uneasy with his wife's lazy attitude and he begins to complaint compare each and everything with Nirmala.This creats problem in his marriage life.Viswanathan approaches Nirmala with wrong intention but fails.He tells Susheela that Nirmala tried to entice him.Susheela ask Nirmala to leave the house.She comes back to her husband's home.There she overhears the fight between Prabhakaran and Vasanthy.Knowing that her presence creats problem in everyones life she leaves home.Master and Prabhakaran follows her but they finds Nirmala in a disturbed mental state.Soon Nirmala dies.