Satyaraj is an orphan and he adopts a local Christian family, and becomes the guardian of the family. He comes to Ooty searching for a job in a cinema theatre run by manivannan, where Satyaraj's friend, S Ve Shekar also works. Due to some clever planning, Satyaraj convinces maNi and gets the job. But maNivaNNan wants only a married man to be his manager. Because Satyaraj is desperate, he lies that he is married and that his wife works as a post-women in Madras. He runs into petty fights with Manivannan's daughter Manthra, who plans underground tricks to sack Satyaraj from his job. Anandaraj is the "muRai paiyan " for Manthra, who wants to mzffy her for property. Due to one such prank from Manthra, Manivannan asks Satyaraj to ask his wife to come and collect his salary. Satyaraj then lies, that he is a widower and shows a photo of unknown figure Kushboo (supposed to have died), got from one of the local studios, as his wife. While Satyaraj and S Ve shakhar do cleverly mastermind this plan, R Sundararajan a local interior designer(?) brings back Kushboo alive but mentally retarded to Satyaraj's place. Meanwhile, some astrologer predicts that Manthra should be married as a second wife, or else her "thaali" wouldn't last long and Manivannan, wants Satyaraj to marry her. Having a big fish in hand, Satyaraj tries to conceal Kushboo and marry Manthra. The second half goes in Kushboo's pranks and the duo's attempts in hiding her, who also turns out to be pregnant and making a fool of Manivannan. Finally, Satyraj is caught red-handed, and then he traces Kushboo's origin and discovers that she is the eldest daughter of his adopted family (so his sister!) and Anandaraj is the culprit who is her husband who deserted her, which made her insane. He doesn't have any evidence to prove this fact and finally director Raj Kapoor uses "ladies-sentiment" of pregnancy and pain to make Anandraj confess and the movie ends with wedding knots for Anandaraj-Kushboo and Satyaraj-Mantra.
D. S. Ramanujam of The Hindu wrote, "A pinch of parody and satire go well in the full length comedy movie of Malar Films' ``Kalyana Kalatta″, where director Raj Kapoor who has been dealing with sentiment oriented subjects, has proved his capacity to handle a light-hearted subject. The nucleus of Jeevakumaran's story may be old but the director's screenplay and dialogue make it an enjoyable one".[3] Ji of Kalki praised the humour but panned Yuvan Shankar Raja's music.[4]
