History of the Anushilan Samiti
Around 1902, Aurobindo Ghosh arranged for Bannerjee to return to Calcutta to begin organisational work, where he began a gymnasium and a youth society. It was at this time that Bannerjee came in touch with Vibhuti Bhushan Bhattacharya, Sarala Devi Ghoshal and Pramathanath Mitra. In Calcutta, a few clubs and societies were still active at the time. Most notable was a gymnasium in Ballygunge Circular Road run by Sarala Devi herself, a second was an organisation named "Anushilan Samiti" founded by Satish Chandra Basu with the patronage of Pramathanath Mitra. A third one was a youth club called "Attōnnōti Samiti" (Self-improvement society) in central Calcutta.
Shaukat Usmani
M.N. Roy, an ex-member of the Anushilan Samiti, a powerful secret revolutionary organization operating in East Bengal in the opening years of the 20th century, went to Moscow by the end of April 1920, and soon after founded the émigré Communist Party of India at Tashkent on 17 October 1920. The fledgling party became a part of Communist International (Comintern) in 1921. Usmani had been a very early leading activist of the émigré Communist Party of India.