Tripura has the highest number of primate species found in any Indian state. Tripura is a landlocked state in North East India. Tripura became a Union Territory on 1 July, 1963, and attained the status of a full-fledged state on 21 January, 1972. Tripura has a tropical savanna climate. The ancient name of Tripura is Kirat Desh or “The land of Kirat”.
The Central Himalayas encompasses the areas with the highest topographic relief. The Central Himalayas is again separated into four zones:The High Himalayan Crystalline Sequence (HHCS)The Tethys Himalaya (TH)The Nyimaling-Tso Morari Metamorphic Dome (NTMD)The Lamayuru and Markha Units (LMU)
Dampier-Hodges line is an imaginary line drawn in 1829-1830 to mark the northern boundary of Sundarbans delta. It passes through 24 Parganas South and North districts of West Bengal.