[1] It has become one of the major districts in the area owing to the presence of crude oil, coal and mineral resources in addition to tourism and hydropower.

They had fled from East Pakistan, which constructed the Kaptai Dam on their lands displacing hundreds of thousands.

Changlang district occupies an area of 4,662 square kilometres (1,800 sq mi),[4] comparatively equivalent to Indonesia's Lombok Island.

The freshwater fish are very much in demand they hardly reach major towns nearby like Tinsukia, Doomdooma, Digboi and Dibrugarh.

Changlang headquarters is connected to Assam by Changlang-Margherita road and to Tirap district by Trans-Arunachal Highway.

[11] According to the 2011 census Changlang district has a population of 148,226,[13] roughly equal to the nation of Saint Lucia.

[13] The largest group in the state are the Chakma and Hajong who were settled in the region after their home in the Chittagong Hill Tracts was flooded by the Kaptai Dam.

[15] Another third is made up of tribal groups, namely Tangsa, Tutsa, Nocte, Chakma, Singpho,Galo, Gorkha and the Yobin.

[17] At the time of the 2011 census, 27.14% of the population spoke Chakma, 20.08% Tangsa, 7.09% Nepali, 3.97% Sadri, 3.50% Assamese, 3.26% Hindi, 3.22% Bengali, 2.22% Monpa, 2.04% Bhojpuri, 1.79% Hajong, 1.65% Nocte and 1.13% Chungli Ao as their first language.

[18] Buddhism, followed predominantly by the Chakmas and the Singphos and Khamti, is the largest religion in the district and is practiced by around a third of the population.

Places to visit are World War II cemetery in Jairampur, Indo-Myanmar border town Nampong and Pangsau Pass.