Two swindlers, Nalasivam (V. K. Ramasamy) and Dayalan (Thengai Srinivasan) kill the wife (Pandari Bai) of the wealthy industrialist Manavalan Thangappapuram (M. G. Chakrapani).
The baby (MGR) who was with the mother, escapes from their claws by the intervention of a farmer (V. Gopalakrishnan), who raises the child as his own child by naming him Manickam.
Meanwhile, both criminals mean seeing Thangappapuram, with in the arms, another baby (M. N. Nambiar) and persuade the widower that they saved him.
Wild with joy by thinking of having found his newborn child, Rathnam, Thangappapuram does not know that a terrible trap has just closed on him.
Indeed, this fake Rathnam allows both men, Nalasivam and Dayalan to steal some money from Manavalan Thangappapuram.
But Manickam, finds that he is the real son of Thangappapuram and knows that his father is in a terrible trap.
Manickam tries to prove that he is real Rathnam, but Thangappapuram does not believe Manickam.
How Manickam makes his father to believe him and save him from the fake Rathnam, Nalasivam and Dayalan? is the plot of the story.
The casting is established according to the original order of the credits of opening of the movie, except those not mentioned
This movie was produced by the actor and the friend of MGR, S. A. Ashokan under his banner, Amalraj Films.
MGR plays for the 15th time of his career in front of the camera of his friend, the director Pa.Neelakandhan.
At about a quarter past one of the film, we see the MGR-Manickam throwing a small vase on the photo of the MGR-Kumar (This framed photo is pulled by the film NALLA NERAM, on 1972).
MGR raises various hairstyles in this film.
MGR has 3 feminine partners for him : Rajasree, Manjula and Latha. In 1972 Pramila was selected one of his heroine thereafter it was shifted to Latha
"Nerungi nerungi pazhagum pothu..." was composed by K. V. Mahadevan. (uncredited)
This was the third film released after MGR founded the AnnaDMK.
The film was blockbuster and ran for 125 days.
The music composed by M. S. Viswanathan.
"Nerungi nerungi pazhagum pothu..." was composed by K. V. Mahadevan.