The Indian state of Tripura borders with Bangladesh and the Indian states of Assam and Mizoram. The third-smallest state in India and also a princely state till 1949, It covers an area of 10,491 square kilometres (4,051 sq mi). The area of modern Tripura was ruled for several centuries by the Manikya dynasty of the Twipra kingdom. It was a princely state during British rule, and joined the newly independent India. Ethnic strife between the indigenous Tripuri people and refugees, illegal immigrants influx of Bengali population led to tension and scattered violence since its integration into the country, but the establishment of an autonomous tribal administrative agency and other strategies have led to peace for a short period. Tripura was divided into four districts but with effect from 21 January 2012 four more new districts was divided making a total of eight districts in the state.[1]