Roy impressed Lenin and was given access to the top Soviet leadership. He was then sent to Tashkent with orders to set up a Marxist indoctrination school for Indians. There were several Indian activists who had sought refuge in the Soviet Union after the Turko-German alliance had surrendered. Lenin wanted to use them to create a group steeped in Bolshevik ideas, which could be deployed to pressure the British in India when necessary. This is how the Communist Party of India was founded in Tashkent on 17 October 1920.
