Naxalbari uprising was an armed peasant revolt in 1967 in the Naxalbari block of Siliguri subdivision in Darjeeling district, West Bengal, India. It was mainly led by tribals and the radical communists leaders of Bengal and further developed into the Communist Party of India (Marxist–Leninist) in 1969. The armed struggle became an inspiration to the naxalite movement which rapidly spread from West Bengal to other states of India creating division within in to the CPI(M) Party.