A rebellion in the Telangana region in the northern part of what was to become Andhra Pradesh, a peasant struggle against the feudal regime of the Nizam was already happening when Calcutta thesis was adopted. To use the Telangana rebellion to herald in the Indian revolution was one of the main pillars of Ranadive strategy. During the peak of Telangana rebellion, 3,000 villages and some 41,000 square kilometers of territory were involved in the revolt. The ruler of Hyderabad state, nizam had not yet acceded his territory to India, but the violence of the communist-led rebellion, the central government sent in the army in September 1948. By November 1949, Hyderabad had been forced to accede to the Indian union, and, by October 1951, the violent phase of the Telangana movement had been suppressed.