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.
Panchanan Chakraborty
At this juncture, inside the prison, Panchanan Chakraborty Chakraborty was among those who encouraged the under-trial State prisoners of the Jugantar and the Anushilan Samiti to stop amusing the Police with their internecine animosity and come to terms. Thus united, they maintained their collaboration with Gandhi’s movement, deciding, however, to stick to their initially radical ethics : Bhupendra Kumar Datta took charge of the Jugantar workers and Rabindramohan Sen those of the Anushilan. Soon, shunning the political stunts of the elderly leaders, dissident factions from both these parties united together as the Revolt Group, otherwise baptised by the Police as the New (or Advanced) Violence Party under younger revolutionaries like the Chittagong-famous Ananta Singh, Ganesh Ghosh and Panchanan Chakraborty.