The Kaptai hydroelectric dam, built in East Pakistan and completed in 1962, submerged the Chakma royal capital and about two-fifths of the region's arable land, displacing around 100,000 indigenous people with minimal compensation and sending some 40,000 into India. After Bangladeshi independence the indigenous Jumma peoples' demand for autonomy was rejected, the region was militarised, and the armed Shanti Bahini began an insurgency in 1977. From 1979 successive governments sponsored the settlement of several hundred thousand Bengalis from the plains onto land claimed by indigenous communities, and the army concentrated indigenous villagers into guarded cluster villages; Amnesty International, the independent Chittagong Hill Tracts Commission and IWGIA documented massacres of indigenous civilians at Logang, Longadu, Naniarchar and elsewhere between 1980 and 1993, arson, sexual violence and the flight of some 70,000 people to Tripura. The 1997 Peace Accord ended the insurgency and provided for a regional council, land commission and the withdrawal of temporary camps, but indigenous organisations say its key provisions remain unimplemented and the Bangladeshi government maintains that most have been carried out. The demographic balance of the region was permanently altered.
Pakistani and then Bangladeshi governments flooded, settled and militarised the indigenous Chittagong Hill Tracts
The 1951 census counted 247,053 people in the Hill Tracts, over 97 per cent of them indigenous, and the count for 1961 is usually given as roughly 385,000. By the 1991 census the district held 974,445, of whom 501,144 were indigenous Jumma and 473,301 Bengali settlers, the result of the state-sponsored settlement of the late 1970s and 1980s. The Kaptai dam flooded about 40 per cent of the district's arable land and displaced some 100,000 people in 1960-63.
The lower figure aggregates deaths in the documented massacres and counter-insurgency operations recorded by Amnesty International and the Chittagong Hill Tracts Commission; the higher figure comes from Jumma organisations' cumulative claims across the whole 1977-1997 conflict, including deaths in camps and from displacement. Neither has been tested by an official inquiry.
Amnesty International, the independent Chittagong Hill Tracts Commission and IWGIA documented massacres, rape, arson and forced labour by security forces and settlers.
Bangladesh, India