The Naxalbari movement was violently repressed by the West Bengal government, of which CPI(M) was a major partner. Within the party, the hardliners rallied around an All India Coordination Committee of Communist Revolutionaries. Following the 1968 Burdwan plenum of CPI(M) (held on 5–12 April 1968), the AICCCR separated themselves from CPI(M). This split divided the party throughout the country. But notably in West Bengal, which was the center of the violent radicalized stream, no prominent leading figure left the party. The party and the Naxalites (as the rebels were called) were soon to get into a bloody feud.