According to the Mayurbhanj State Census Report of 1931, the Sounti caste emerged in the 17th century under the leadership of Joygobinda Das from Puri. The census further states that Das arrived in Kendujhar from Puri in 1603 C.E. and was granted permission to settle in the village of Mananta in Kendujhar. After relinquishing his original caste, he is believed to have established this new caste. The newly formed caste consisted of individuals who had been marginalized from other castes and were allowed by the ruler of Kendujhar state to settle in Mananta. Over time, their numbers increased as they readily accepted other outcasts. The name of the caste, in the Odia language, literally means "gathered in," highlighting their origins as a group that gathered together with other outcasts. The Scheduled Castes and the Scheduled Tribes Lists (Modification) Order of 1956 refers to them as Sounti, while the 1931 Mayurbhanj Census mentions them as Saunti. Some members, due to difficulties in pronunciation, may refer to themselves as Samuli or Samti.[3][4]
The Sounti people come under one totemic gotra (killi), Nageswar (cobra), and are divided into a number of exogamous patri-lineages (bansa) like: Aguan Sinha, Anukulia, Apat, Atala, Badam, Baghasinha, Bahabalindra, Baliposia, Banapadia, Bansmulia, Baradia, Bebarta, Behera, Betjharia, Chipindia, Chowdhury, Dakua, Dala Behera, Dalai, Dalai Mahapatra, Bhala Bhai, Bhuinya Mahapatra, Bhujabala, Bhuri Bisai, Biswal, Budhipat, Chatarpania, Daldashia, Danakulia, Dandapat, Dandasena, Das, Dehuri, Desa Dakua, Ghulakundia, Dhangad, Foudakar, Ganabarai, Gharapua Mahapatra, Giri, Gobargadia, Gumanaganjan Singh Berdhajal Mahapatra, Hati, Hatiram, Jadipadia, Jalpadia, Jhapat Sinha, Kalapadia, Kalapal, Kapandia, Kargi, Khamadiha, Khamalia, Khamrai, Khanda, Khandapatra, Kialia, Kuabasia, Kulapadia, Kundalia, Kusmalia, Mahapatra, Malik, Mangal Puria Mardaraj Mahapatra, Miriga Khojia, Mudi, Narendra, Nayak, Nuagadia, Nuakulia, Nungalia, Padhan, Palta Sinha, Pangia, Paramanik, Parida, Putulia, Sarubalia, Satrusala, Raipadia, Sankhalua, Saradia, Sarpat, Sarpuria, Saru, Sindura Roy, Sindurgaria, Sinha, Tainsiria, Talsarua, Tandakar, Tangania, Tangiria, Tarania, Tinti, and they generally use Biswal, Dalai, Dehuri, Naik, Poida, Pradhan as their surnames.[4][5]