Tamil Country in 60's...
Inequitably condemned, in 10 years' imprisonment, Muthuveeran (O. A. K. Devar), escapes after 6 months... He takes refuge in Saïgon...
Embittered and angry against the society, Muthuveeran kidnaps at random of a meeting, in a park of Saïgon, Soundharam (MGR), the unique heir of the billionaire Selvaragham (MGR), then baptizes him of the first name of Pandhiya and the pupil as his own son in India, in the mountains, where he is, at the moment, at the head of a community compound of bandits and their family, living outside the system.
The disappearance of the son arouses at the close relation of the fantastically wealthy father, the greed.
So, Kumar (R. S. Manohar), the Kanagamaligai Estates 's manager, in the Tamil Country, (belonging to the late Selvaragham) and his father, in Saïgon, plan false Soundharam.
Meanwhile, adult, Pandhiya learns by Muthuveeran its real origins.
By a terrible combination of circumstances, false Soundharam falls in a trap led by Vélaiya (M. N. Nambiar), a strong head (from Muthuveeran 's group) and stabs him lethally.
The latter reviled in the arms of Pandhiya revealing him the black intentions of Kumar, and by confiding a bag filled with proofs.
Now, accused hastily of the murder, by a diligent policeman, Chézhiyan (S. A. Ashokan), Pandhiya decides in his turn, to put on the role of Soundharam, to save claws of Kumar, his maternal uncle Kanagarathinam (Sethupathi) and his daughter Mâla (K. R. Vijaya), that with he has to get married.
But Pandhiya already loves another woman, beautiful Kannagi (B. Saroja Devi) and mutually !
But overcoat everything, he has to for his of the mountain, to take out them of the obscurantism, to look for the leniency of the justice, to give them a better life, a new future !
At the moment, the "prodigal son" is faced with a sum of problems.
As he summarizes it so well in front his father 's portrait :
...You've passed away making me the heir for many lakhs of property ! I 'm the billionaire Soundharam & Pandhiya who blamed for the murder ! I 'm the lover for Kannagi & and an engaged groom for Mâla ! God ! I 'd correct my brothers who are in dark and give them live ! In another side, i 'd save this family from the hands of this tricky Manager ! What can i do Dad ?...M. G. Ramachandran as Baashha alias Pandhiya alias Soundharam / Saïgon Selvaragham (In paint)B. Saroja Devi as Kannagi / Kavéri, Kannagi 's motherK. R. Vijaya as Mâla KanagarathinamM. N. Nambiar as VélaiyaR. S. Manohar as KumarS. A. Ashokan as Chézhiyan, police officerNagesh as AppuC. R. Parthibhan as IGO. A. K. Devar as Muthuveeran, Kavéri 's fatherSethupathi as Kanagarathinam, Mâla 's father
It is certain that with the enormous triumph met from their first collaboration, that is, MGR - Chanakya, on ENGA VEETU PILLAI, previous year, released for Pongal 1965, that 2 men were not going to stay there!
Thus their second meeting gave NAAN AANAIYTTAL financed by the prestigious banner, R. M. Veerappan 's Sathiya Movies , (his second production with MGR also, in black and white).
MGR and Chanakya will give themselves another 2 other rendez-vous in 1968.
The first one was PUDHIYA BOOMI in June and the second, OLI VILAKKU, in September, who will also be the 100th movie of MGR !
With the producer R. M. Veerappan, MGR did well others, 10 there all in all !
The music composed by M. S. Viswanathan.