Arunachal Pradesh is one of the twenty-nine states of the Republic of India. Located in northeast India, it holds the most north-eastern position among the states in the north-east region of India. Arunachal Pradesh borders the states of Assam and Nagaland to the south, and shares international borders with Bhutan in the west, Burma in the east and China in the north. Itanagar is the capital of the state.
Most of the state, formerly called the North-East Frontier Agency, was ceded to Britain by the Tibetan government with the Simla Accord (1914). China does not recognize the legality of that treaty, and claims most of the state as South Tibet. The state is seen to have major potential for hydropower development.