Which is the second most populous country in the world ?

Answer 1

India is second most populous country in the world which has a population of 1.26 B as of Oct 2014 which is 17.5% of world population.

Here is the top five countries in terms of population -
1 China: 1.36B which is 19% of world population.
2 India: 1.26B which is 17.5% of world population.
3 United States: 318 M which is 4.4% of world population.
4 Indonesia: 252 M which is 3.5% of world population.
5 Brazil: 203M which is 2.8 % of world population.

Interesting Fact: Top 5 counties covers the 45% of world population but only 22% world land. Top two countries covers the 35% of world population but only 9% of land.

Comments

Commenting on behalf of Manish Sharma:
Interesting fact... But to notice

Large portion of land covered by Iceland, Siberia and north Canada including Alaska is not suitable for human being due to sub zero temp across year.