With his recent offering 'Bison: Kaalamaadan', director Mari Selvaraj once again holds up a mirror to society, highlighting caste atrocities in the village of Vanathi and their impact on kabaddi player Vanathi Kittan (Dhruv Vikram). He is the victim of caste oppression, and every time life begins to seem hopeful for him, caste injustice rears its ugly head and strikes him down again. With every hard blow to his gut, he revolts – but through his kabaddi. His success becomes the only answer to those who oppress him.
The gang war between two factions, led by Pandiyaraja (Ameer) and Kanthasamy (Lal), affects Kittan and the people in the lower rungs of society, even though they are not active participants in the caste politics or the atrocities that take place in the name of caste . They are