Raghupathy, studying in Australia, goes to New Zealand with a friend and runs into Malavika. They start off having petty fights but end up falling in love. But circumstances force them to separate without exchanging any information about each other.

Back at home, Raghu makes friends with Prakash and chances upon his family photograph which surprisingly includes his mother Saradha, who as far as he knew had no relations. But on questioning, his mother reveals that she was part of a large family (three brothers and a sister) but had been sent out of the family after deciding to wed someone of her own choice. Raghu travels to the village as Prakash's friend and soon endears himself to the members of his family. Turns out Malavika is the daughter of one of the brothers too. But when he learns that Prakash wishes to marry her, he decides to bow out. But Prakash, on knowing about their romance, wishes that they get together.

The family elders too agree to Raghu marrying Malavika but refuse to let the alliance go any further after learning that Raghu is Saradha's son. Raghu too agrees to sacrifice his love since he does not want to wed Malavika and cause even more friction in the already fractured family. How Raghu eventually reunites the separated family and weds Malavika forms the crux of the film.