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.
Sambhunath Pandit
In the "History of the Brahmo Samaj", Sivanath Sastri writes, “In the month of June 1852, a number of influential men of that suburban town (meaning Bhowanipur) assembled at the house of the late Sambhunath Pandit, latterly a Judge of Calcutta High Court, and established an Association under the name of Jnan Prakasika Sabha, or “Truth Revealing Society”, whose object it was to promote the spiritual enlightenment of its members. It was virtually a Brahmo Samaj, though the name was different. Sambhunath Pandit became its president, Babu Annadaprasad Banerjee, a pleader of the High Court, vice-president, and Baboo Harishchandra Mukherji of the "Hindu Patriot" fame its secretary… From the first anniversary of the Society held in 1853, it was duly and formally installed as Bhowanipur Brahmo Samaj." It followed the Adi Samaj form of divine service.