The graph below

The line graph illustrates the proportion of population in India and China since 2000 and how they will change up to 2050

It is clear that from 2000 to 2050, the number of population in India increased steadily and the figure of people in China will peak in 2030 and then begin to fall

In 2000, there were more people living in China than in India. The number of China was 1.25 billion, while India's population was about 1 billion. Between 2000 and 2030, the number of population in India and China rose gradually, reach the same population of 1.45 billion.

in 2050,The number of population in India is higher than the number of population in China. the figure of China will decrease slowly by 0.05 billion to reach over 1.4 billion. The people living in India will rise quickly, reach over 1.6 billion.