IWGIA online:- Chittagong Hill Tracts

http://www.iwgia.org/sw28280.asp

The majority of Bangladesh’s 143.3 million people are Bengalis, and approximately 2.5 million are indigenous peoples belonging to 45 different ethnic groups. These peoples are concentrated
in the north, and in the Chittagong Hill Tracts (CHT) in the south-east of the country. In the CHT, the indigenous peoples are commonly known as Jummas for their common practice of swidden cultivation (crop rotation agriculture) locally known as jum. There is no constitutional recognition of the indigenous peoples of Bangladesh. They are only referred to as “backward segments of the population”.

Indigenous peoples remain among the most persecuted of all minorities, facing discrimination not only on the basis of their religion and ethnicity but also because of their indigenous identity and their socio-economic status. In the CHT, the indigenous peoples took up arms in defence of their rights. In December 1997, the 25-year-long civil war ended with a Peace Accord between the Government of Bangladesh and the Parbattya Chattagram Jana Samhati Samiti (PCJSS, United People’s Party), which led the resistance movement. The Accord recognises the Chittagong Hill Tracts as a “tribal inhabited” region, its traditional governance system and the role of its chiefs, and it provides building blocks for indigenous autonomy.
(From The Indigenous World 2008)