North-Eastern Zonal Council has eight states viz, Sikkim, Arunachal Pradesh, Meghalaya, Nagaland, Manipur, Mizoram, Tripura, Assam. Taking states and UTs together, the Northern zonal council has the maximum number of states and UT.
The Thermal concept of the origin of monsoon was given by noted astronomer Halley. But there were some faults. Halley overlooked the Coriolis effect and the concept of the passing of latent heat through water vapour.
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 Narmada river creates the conventional border between South India and North India. The river runs to the west for a span of 1,312 km and flowed through the Gulf of Khambat (Cambay) into the Arabian Sea, in Gujarat. Like the Mahi River and the Tapti River, the Narmada River is a river flowing from east to west.