Kissan movie tells Balaraman Thampuran is the feudal lord who rules the roost in Thekkeppatt Kovilakam. He is the personification of all that is evil with the feudal system. He is cruel and treats the peasants as his personal slaves, making them work on his farm lands for a pittance.
Devan (Biju Menon) who is the son of Savithri who also belongs to the Kovilakam. He has just returned after higher studies in London. As per family tradition he is to marry the daughter of Balaraman. Devan believes all men are equal and must not be segregated along the lines of cast or creed. He renews friendship with Velu (Kalabhavan MAni) who is his childhood playmate, who belongs to the lowly Dalit class.
Balaraman does not look favourably on this relationship. He feels that if this friendship is not snipped in the bud, it will destroy the very foundations of the feudal system, and that he would lose all his pomp and power. Getting rid of Velu is the only way to ensure his future, he decides. He chooses the annual football match between the feudal team and the peasants as the occasion to put his plan into effect. Devan who sniffs out the plan comes to Velu's rescue. This aggravates the situation.