Northeast India border disputes

[1][2] The disputes, including clashes between rival police forces, have resulted in the loss of life, livelihood and property.

[3] The border disputes in some cases are part of the larger national (separatist), sub-regional and ethnic conflicts, as well as criminal enterprise fuelled.

[6] Cachar (Assam) Deputy Commissioner John Ware Edgar signed a treaty/boundary agreement with Lushai (Mizo) Chief Suakpuilala in 1871.

[…] in exercise of the power conferred by section 2 of the Bengal Eastern Frontier Regulation, 1873 (v of 1873), as extended to the Lushai Hills District, the Governor in Council with the previous sanction of the Governor General in Council, is pleased to prescribe the line described below as the 'Inner Line' of the Lushai Hills District.

The North-Eastern Areas (Reorganisation) Act, 1971 defines the boundary between Assam and Mizoram in independent India;[8] this is based on the 1933 notification.

[15] The central government stepped in to assist in de-escalating the immediate situation between the rival state police forces and attempt a future solution.

[28] 4 interim-agreements signed in 1972 put the reserve forests of "Geleki, Abhoypur, Tiru Hills, Dessoi Valley and Doyang" off limits for activity like construction of roads.

[31] These encroachments have helped the governments in both Assam and Nagaland,[31] as well as the various factions of separatist NSCN, lay claim to the territory, despite an official status quo is supposed to be in place.

[46] To address the larger conflict in the northeast which directly impacts the situation of the internal borders, the Indian government has signed more than 13 peace accords between 1949 and 2005.

[49][50] In 1989, Assam filed a case before the Supreme Court of India in relation to the border dispute with Arunachal Pradesh and Nagaland.