Avan Oru Sarithiram is a 1976 Indian Tamil-language drama film co-produced and directed by D. Yoganand.
The film stars Sivaji Ganesan, K. R. Vijaya, Sivakumar, and Jaya, with Sivakumar playing the role of his younger brother in this film.
The story revolves around Raju and Lakshmi, who live with their brother Ravi and sacrifice everything to make Raju successful in his education and career. However, when Ravi returns after completing his education, he introduces Uma as his lover, but she has bi-polar disorder, causing her to swing between extremes.
The film explores how the family handles Uma without breaking up, forming the core of the story.