Pazhani has two children — Chandiran and Meena. Meena is married. Chandiran loves Pankajam. His father and grandmother want him to marry a relative girl, Thangam, who is very helpful to the family. But Chandiran marries Pankajam defying them. Although brought in for comic relief, the ever-loveable J. P. Chandrababu and his milkman character became the real irresistible pull of this family melodrama. Director A. Bhimsingh—a rare talent to have successes in both South Indian and Hindi cinemas—masterfully blends lightness and pathos.

Selvi, who is married to Dr Tyagi, is shocked by the lavish nature of his family and warns him against overspending. However, Tyagu eventually ends up in financial trouble.

Lawyer Ganapathi and his wife Annapurna are the eldest members of a family. His brother Subbu and his wife Anusuya live in the village. The duo treats their cousin brother Gopu, who is an idealist, as their own sibling. Annapurna is a chronic patient so Gopu's wife Susheela takes care of the family. Jealous of the bonding between Annapurna and Susheela, Anusuya creates a rift between them. Gopu and Susheela move to the village. Gopu propounds cooperative farming and prospers.

Chinnathambi, the only son of estate owner Sundaram Pillai, falls in love with Kalyani, the daughter of a poor clerk, but their romance faces obstacles.

A couple share a house with other three tenants who hail from different parts of the country. However, an unexpected turn of events changes the couple's dynamics with the tenants.

Dharmalinga Mudaliyaar is a rogue who appears as a nobleman to the outside world. In order to get a hold of his wife's property and marry his sister-in-law, he hatches an evil plan.