Biodiversity hotspots are designated by an American. NGO conservation international. Biodiversity Hotspots are often defined according to their plant vegetation. To qualify as a biodiversity hotspot, a region must meet two strict criteria: ● Atleast 1500 species of varcular plants (50.5% of theworld’s total) as endemic and it has to have last at last 70% of its original haltat. Currently, 35 biodiversity hotspots have been identified, most of which occur in tropical forests. Four of the globally identified biodiversity hotspots are found in India: The Himalayas, the Western Ghats, the North-East, and the Nicobar Islands.