The Seven Sister states are the contiguous states of Arunachal Pradesh, Assam, Meghalaya, Manipur, Mizoram, Nagaland and  Tripura in northeastern India. These states cover an area of , or about seven percent of India's total area. they had a population of 44.98 million, about 3.7 percent of India's total. Although there is great ethnic and religious diversity within the seven states, they bear similarities in the political, social and economic spheres.