According to the Zoological Survey of India (ZSI), India is known to have approximately 7.5% of the animal species found worldwide.
Within only about 2 percent of the world's total land surface, India is known to have over 7.5% of the species of animals that the world holds.
The Zoological Survey of India (ZSI), with its headquarters in Kolkata and 16 regional stations is responsible for surveying the faunal resources of India.