 It had two prominent, somewhat independent, arms in East and West Bengal, Dhaka Anushilan Samiti (centred in Dhaka, modern day Bangladesh), and the Jugantar group (centred at Calcutta).From its foundation to its dissolution during the 1930s, the Samiti challenged British rule in India by engaging in militant nationalism, including bombings, assassinations, and politically-motivated violence.The Samiti collaborated with other revolutionary organisations in India and abroad.