Arunachal Pradesh (lit. 'Dawn-Lit Mountain Province') is a state in northeast India. It was known as the North-East Frontier Agency until 1972, after which it became a union territory under the name Arunachal Pradesh. It became a state on 20 February 1987. Itanagar is its capital and largest town.
It shares international borders with Bhutan in the west, Myanmar in the east, and a disputed 1,129 km border with China's Tibet Autonomous Region in the north at the McMahon Line. Nearly four-fifths of Arunachal Pradesh is claimed by China as Southern Tibet as part of the Tibet Autonomous Region; China occupied some regions of Arunachal Pradesh in 1962 but later withdrew its forces.
As per the 2011 census, Arunachal Pradesh has a population of 1,383,727.