India is officially recognized as comprising five major biogeographic regions.
These regions are based on classifications considering factors like climate, flora, fauna, and geographical boundaries.
The question asks for the number of biogeographic regions reported for India, and the accepted classification identifies five distinct regions.
| List I | List II |
| a. Endangered Species | i. Desert sheep and hornbill |
| b. Vulnerable Species | ii. Blue Sheep |
| c. Rare Species | iii. Lion Tailed Macaque |
| d. Extinct Species | iv. Pink headed duck |