Singh, the community uses different surnames/titles in different states and union territories of India; these are: Swami, Bairagi, Mahanta, Maharaj, Vaishnav, Bawa, Pandit, Purohit, Goswami, Sharma, Das, Brahmachari, and Pal.
A majority of Bairagi Brahmin is found in Uttar Pradesh, Bihar, Jharkhand, West Bengal, Assam, and Odisha.
And these members are divided into three categories – renunciant (Virakt), warrior (Naga) and temple-dwelling (temple priest) ascetics.
[1] Another case was of Maharaja Jai Singh II, king of Jaipur State held a meeting with all Vaishnavas mahants.
– Meeting of Maharaja Jai Singh II with Ramanandi mahants and other vaishnava to maintain strict caste rules, 1720.
[6] Maharaja Jai Singh II obtained pledges from Ramanandi mahants and other vaishnava to maintain strict caste rules.
[8] Bairagi Sect in bengal is mainly formed by Poundra, Kayastha, Rajbanshi Castes in Gaudiya Sampradaya.
[8] William Pinch believes that the Bairagi branch of Vaishnavas is the result of the Bhakti Movement in 1000th CE.