(Bengali script: ত্রিপুরা) is a state in North-East India. Tripura is surrounded by Bangladesh on the north, south and west. The Indian states of Assam and Mizoram lie to the east. The capital is Agartala and the main languages spoken are Bengali and Kokborok (also known as Tripuri). It was formerly an independent Tripuri kingdom and was merged with independent India on 15 October 1949 by the Tripura Merger Agreement. It was also known as Hill Tippera (anglicized version of Tipra) during the British India period Hill Tippera, from Encyclopædia Britannica Eleventh Edition. and has a history of over 2500 years and 186 Kings .