Vivasayi
Vivasayi ( ) is a 1967 Indian Tamil-language film, directed by M. A. Thirumugam and produced by Sandow M. M. A. Chinnappa Thevar. The film stars M. G. Ramachandran and K. R. Vijaya, with M. N. Nambiar, S. A. Ashokan, Nagesh and Manorama in supporting roles. It was released on 1 November 1967, during Diwali. Plot 

Muthaiya, a young agronomist and a farmer, full of ingenuity, a high integrity, a worker and a pride of his parents, the rich big landowner, Pannaiyar Duraiswamy and of his wife, the devoted Sivagami, revolutionise the exploitation of his father, by applying new methods of sowing. He so hopes to multiply tenfold the yield for humanitarian purposes and not necessarily for profit. Because one day, he takes the defence of unfortunate farmers despoiled of their ground, by his neighbour, another big farmer, Pannaiyar Velupandhiyan, an unscrupulous man, Muthaiya incurs the wrath of this very vindictive character. The situation complicates when the attractive Vijaya falls in love with the beautiful Muthaiya. Indeed, she is to be the sister-in-law of Velupandhiyan. And that the latter desired her ardently under the nose of his wife, the devoted believer Kaveri. To see her taking off from between his fingers, makes him particularly dangerous and obnoxious with his wife, Kaveri. Now, Muthaiya is even more in danger, Velupandhiyan wants to kill him. 