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.
Brahmo Samaj
Brahmo Samaj (Bengali: ব্রাহ্ম সমাজ "Bramho Shômaj") is the societal component of Brahmoism, which began as a monotheistic reformist movement of the Hindu religion that appeared during the Bengal Renaissance. It is practised today mainly as the Adi Dharm after its eclipse in Bengal consequent to the exit of the Tattwabodini Sabha from its ranks in 1839. After the publication of Hemendranath Tagore's Brahmo "Anusthan" (code of practice) in 1860 which formally divorced Brahmoism from Hinduism, the first Brahmo Samaj was founded in 1861 at Lahore by Pandit Nobin Chandra Roy.