The district came into existence on 1 September 1970, when the entire state was divided into three districts. The undivided district headquarter was located at Udaipur. The newly establish South Tripura District was inaugurated on 6th January, 2012, by Manik Sarkar, former Chief Minister, Tripura. The district headquarter is located at Belonia, South Tripura. District has three sub divisions (Belonia, Sabroom and Santirbazar).The district resides in two Lok Sabha constituencies: Tripura West (shared with West Tripura district) and Tripura East (shared with Dhalai and North Tripura districts).
The people of Tripura are mostly Tribals with the largest tribal group as Tripuris, Bengalis, Manipuris and Muslims. Bengali, Muslim, Reang, Chakma, Tripuri,Mog etc. communities are mainly inhabiting in the South Tripura District. The most commonly spoken languages here are Bengali kokborok ,chakma Mog and various dialects of the Tripuri language. Bengali is also a widely spoken language and it is also the official language as a major part of the population is consisting of Bengali people. Hinduism is the dominant religion in Tripura while there are practitioners of Islam and Christianity as well. Despite this diversity, all festivals are celebrated with equal fanfare and gaiety.
Music and dance are integral parts of the life of the people in the state, and the Garia ,Mamita ,Labang Bumani dance practicing by tripuri community. Hozagiri dance of Reang tribe Sangrai Dance of Mog community and Biju dance of Chakma community also practiced in the South Tripura District.
Hozagiri festival of Reang community, Baiju festival of Tripuri community, Biju festival of Chakma community, Murashing festival of Murashing community , Wah and Mahamoni festival of Mog community are the community based festival of the district.
Beside these Kalapania festival, Sanghati Mela, Pilak Archeological and Tourism Festival, Baishakhi Mela are also celebrated in the District. Dance and songs form an important part of the festivities and both tribals and non-tribals participate equally in the celebration maintaining peace and harmony.