The Population Reference Bureau asks whether India's population (now at 1.1 billion) will reach two billion. If India does reach 2 billion people, it will likely be the only country in the world to ever do so in the future as world population is expected to decline eventually after it peaks in the next few decades to a hundred years or so. Their answer is that India's population will definitely reach 1.8 billion by 2050 and could reach 2 billion by 2100 if birth rates do not drop in India's most fertile states. The PRB provides a summary and a 15-page in-depth report on the individual population estimates for Indian states.

Comments
The ads that continually cover up what I am reading when viewing this site (displayed without the option to close the ad, I might add!!!) are starting to make me very angry; either they go, or I do!!!
I have been to India a few times in my life. It is true that Uttar Pradesh is very populated, when entering Rajasthan, it seems like there is nobody there! That is a big difference between states. Which proves that there is a big concentration of people in certain areas. Having 2 billion people in India would be quite overwhelming. I personally would love to be alive to see it.
Surely even the poorest and illiterate people can be taught what causes babies — even if you have to use pictures . . . “This causes babies. Too many babies, you have no jobs, you all go hungry and have no good place to live.” End of story. I think that would make me think . . .
As for the comment by Sharon, well, think about it — all those people need food, shelter, sanitation, education, medical attention — so besides the “awesomeness” of the population exploding beyond what that country can handle just so you can see it, what are you willing to give up so they can have the basics of life???
WHY does the country allow it? Do they think there’s a prize for hitting 2 billion first in the world? Is it OK with them to just have these purposeless people wandering thru the streets looking at the rest of the world — hungry and ragged — from the covers of Time Magazine hoping that we might send them our leftovers . . .
I’m sorry. I just don’t get it and if someone could explain it to me — please do and I’ll be waiting for your response.