India looks set to overtake China as the world's most populous country from 2028, according to the United Nations.
At that point, both nations will number 1.45 billion people each.
Subsequently India's population will continue to grow until the middle of the century, while China's slowly declines.
The UN also estimates that the current global population of 7.2 billion will reach 9.6 billion by 2050.
That is a faster rate of growth than previously estimated.