M. S. Sundari Bai

Chandrasekaran, an industrialist, is very successful in his business and has a loving family. His three sons and two daughters live happily as one family. He brings up an orphan, Rangan (Sivaji Ganesan), who is utterly devoted to the family. Calamity strikes the family in the form of loss in business. The last daughter's marriage gets cancelled. The brothers and their wives ill-treat their parents and Rangan and his wife. Seeing this Chandrasekaran has no choice to ask Rangan and his wife leave their house. Aftermath Chandrasekaran dies a broken-hearted man leaving his wife and youngest daughter to be in their children's merciless hospitality. Rangan, with his simplicity and pure-hardheartedness, takes it upon himself to look after the mother and sister. In the end, he proves that love and affection is the greatest wealth.

Kumaran, who is married to Kumudha, takes the blame for a murder he did not commit. Convinced of his innocence, his former lover sets out to unearth the truth, which involves Kumaran's brother-in-law.

Madhavan marries Thangam. He takes care of Thangam’s mother and brother along with his younger brother. Meanwhile, Madhavan gives shelter to his father’s mistress and her daughter. The evil ladies allege Thangam for loose morals. The rest of the story is how they come into good terms.

Venkatchalam lives with his sister Indumathi, who hates men and vows to never get married. When Sanjeevi, Venkatchalam's friend, meets Indumathi, he falls in love with her.

Lalitha is the eldest daughter of a pious and conservative Brahmin family. She has eight siblings and poverty rules reign. She decides to take up the family mantle and goes to work. Due to family needs and ill fate, she ends up as a prostitute but manages to settle all her brothers and sisters. Her family ditches her when they come to know about her dark side. Thangavelu, a man who was once rejected by her marries her. She loses her sanity in the end.

Ravi, the only son of Vedachalam (Baliah), has traveled on business. Returning home, he meets a young woman on the train after picking up her spilled luggage. The contents of the luggage reveal that she is his sister, from his father's teenage years. When he returns home, she is moved in and living a life of wealthy luxury. But is she really who she says she is?