C. S. Pandian

Saraswathi is a woman separated from her husband. She and her daughter Thilakam take refuge in her sister's family in Tiruchi. Saraswathi wants her daughter Thilakam to be married to her brother Sekhar. But her uncle Sambasivam wants to marry Thilakam to a rich but old man in Bombay. Sambasivam's son Gunasekharan is against this plan and wants Thilakam to be married to Sekhar.

Nallathambi (NSK) a simple rural man inherits an estate from his deceased Zamindar relative. The Zamindar's daughter Pushpa (Bhanumathi) falls in love with Nallathambi. However he loves another girl (T. A. Madhuram). Bhoopathy (Sahasranamam) the estate manager has his eye on the wealth and tries to cheat Nallathambi out of it. He goads Pushpa into filing a suit that Nallathambi is mentally insane. In the end Nallathambi defeats Bhoopathy's machinations.