The purpose of this paper is to comprehend agrarian struggle which occurred in Champaran district, after the independence of India. As the Champaran Satyagraha, launched by Gandhi during the colonial period, has been a most celebrated peasant movement which was basically for the causes of reasonably rich tenants, but the problems of those who worked as agricultural labourers and sharecroppers were hardly touched by the peasant leaders during the colonial period. After independence, a new kind of the struggle, whose social base was not the tenants, but the labourers and sharecroppers, emerged in the district in 1960s and 1970s. The paper gives a large space to the most celebrated leader Gambhira Sah for the poor peasants, labourers and sharecroppers of Champaran. He envisaged Garib Raj (rule of the poor). The paper, in the end, illustrates the course of the struggle after the killing of Gambhira Sah.