The Bangladeshi Constitution does not refer to any group (inclusive of Bengalis) as indigenous. As in India's [[Tripura]] State, the Chakmas have lived in Bangladesh before it gained its independence. Recent migrations of ethnic Bengalis into traditionally Chakma regions of Bangladesh have raised tensions in the Chittagong Hill Tracts. Successive governments have dealt forcefully with Chakma uprisings and finally ended the conflict with [[Chittagong Hill Tracts#History|The 1997 Peace Treaty]]. This forceful dealing and the construction of Kaptai Dam by then-Pakistan government in Chakma areas submerged cultivable lands and displaced thousands, resulted in the migration of a large population of Chakmas into [[Diyun]] in the state of [[Arunachal Pradesh]] of India during 1964–1969. Many Buddhist Chakmas migrated from [[East Pakistan]] (now Bangladesh) to India. Projects for infrastructure development negatively impacted CHT tribals starting in the 1950s. These included the [[Kaptai Dam]] hydro-electric project, built by the Pakistan government, with the assistance of the US Agency of International Development, between 1959 and 1963 to provide electricity for much of East Pakistan. Forty percent of the farmland in the Chittagong Hill Tracts was flooded by the project, displacing nearly 100,000 Chakmas. About sixty percent were resettled, and forty percent fled to India. Chakmas made up 90% of 10,000 people whose farmland of 54,000 acres was flooded in 1962 by the [[Karnafuli reservoir]] and Kaptai Dam. Inept relocation and insufficient compensation were offered to the Chakmas for the dam. The Chittagong Hill Tracts Chakma population was estimated at 250,000 in 1964. The CHT was described as being filled with fountains of water, hilly, forested, and with a verdant green landscape. A deputy commissioner administered the Chittagong Hill Tracts Division under Pakistani rule. [[Manabendra Narayan Larma]] requested autonomy in 1970. India used [[North-East Frontier Agency|NEFA]] as a resettlement area for Chakma refugees. The India [[Tripura]] state had to deal with the issue of Chakma families. Agriculture, employment and education are dominated by Chakmas compared to Arunachal natives because they are more skilled and have a higher literacy rate. The issue of returning Chakma refugees from India to Bangladesh was raised in 1995.