AIIMS 2013 Biology Question Paper for free online practice with solutions

The total number of species estimated is about 1.74 million. Out of these, the number of known species in India is 1,42,000 or roughly 8.1% of the total though India has only 2.4% land area. India with about 45000 species of plants and twice as many species of animals is one of the 12 megadiversity countries of the world.