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.
Sunder Singh Lyallpuri
In the wake of Hindu-Muslim riots of 1924, Mahatma Gandhi and other national leaders like Maulana Mohammad Ali and Dr M. A. Anusari called a national "Ekta Samelan" at Delhi in 1924 which continued for several days. It concentrated mainly on national unity, mutual trust, love and brotherhood. At the end a Central National Panchayat was constituted which was authorised to recruit further members and expand it to the grass roots. With Mahatma Gandhi as its chairman and Convener, the National Panchayat included, among others, Lala Lajpat Rai, G. K. Nariman, Master Sunder Singh Lyallpuri, Dr S. K. Datta and Hakim Ajmal Khan. In the following years, Master Lyallpuri organised or else participated in several seminars or "Ekta Samelans" for the promotion of mutual love, trust and brotherhood among the Hindus, Muslims, Christians, and the Sikhs. Lyallpuri also remained a member of All India Congress Committee.