Anushilan Samiti
Anushilan Samiti (Ōnūshīlōn sōmītī, "lit": body-building society) was a Bengali Indian organisation that existed in the first quarter of the twentieth century, and propounded revolutionary violence as the means for ending British rule in India. The organisation arose from a conglomeration of local youth groups and gyms ("Akhara") in Bengal in 1902. It had two prominent, if somewhat independent, arms in East and West Bengal identified as Dhaka Anushilan Samiti centred in Dhaka (modern day Bangladesh), and the Jugantar group (centred at Calcutta) respectively.
Shripad Amrit Dange
M.N. Roy, an ex-member of the Anushilan Samiti, perhaps the most important secret revolutionary organisation operating in East Bengal in the opening years of the 20th century, went to Moscow in by the end of April 1920. The new Russian government under Lenin evinced interest in him and encouraged him to form an Indian Communist Party. Roy went on to found the émigré Communist Party of India on 17 October 1920 in Tashkent. On his return to India, M.N. Roy who had read "Gandhi Vs. Lenin" met Dange in 1922. Dange at that time was closely associating with Lotvala to spread Marxian ideas. It was during this period that Dange grew in prominence as a Marxist; a sure way those days to invite antagonism from the British Government.