Question

what is the approximate number of animal species found in India

Answer 1

I assume by animals you are referring to Mammals in scientific language. 

India shows very high and diverse biological diversity encompassing about 10% of the world species about 400 in number.

Also, India hosts
- 12.6% of all avian species
- 6.2% of all reptiles
- 11.7% of all fish/aquatic

*If this helps, please mark as Brainliest*

Answer 2

India has some of the most diverse regions of the world.The political boundaries of India encompasses a wide range of eco-zones - desert, high mountains, highlands, tropical and temperate forests, swamp-lands, plains, grasslands, areas surrounding the rivers, as well as island archipelago. It hosts three biodiversity hotspots : The Western Ghats, The Himalayas and The Indo-Burma region.The hotspots have numerous endemic species.

India displays significant biodiversity. One of the eighteen mega-diverse countries of the world, India is home to 
1)  7.6 % of all Mammalian.
2) 12.6 % of all Avian.
3)  6.2 % of all Reptilian.
4) 4.4 % of all Amphibian.
5) 11.7 % of all the Fish.
6) 6.83 % of all the Insects.
7) 7.62 % of all the Molluscs.
 
As far as number of species is concerned, India is home to
1) 410 species of Mammals.
2) 1200 species of Birds.
3) 408 species of Reptiles.
4) 197 species of Amphibians.
5) 2546 species of Fish.
6) 50000 species of Insects.
7) 4000 species of Molluscs.