Geetham (1986)

This multilayered relationship drama delves into the trials and triumphs in the life of Aparna (Geetha), the strong-willed and vivacious human, who has become a teacher against her mother's wishes. At the school where she works, she develops a close bond with Abhimanyu, whom she believes to be the son of a famous playwright, Yatheendran (Mammootty), Perhaps because she was once in love with Yatheendran she begins to love Abhimanyu as her own. However, when an enigmatic stranger Jagadeesh Nair (Mohanlal) arrives from the USA making the claim that he is in fact Abhimanyu's biological father, Aparna must unravel the complex web of relationships. What is the truth behind Abhimanyu's parentage