According to the U.N. estimates after 2024 India's population is projected to continue growing for several decades to around 1.5 billion in 2030 and approaching 1.66 billion in 2050, while the population of China is projected to remain stable until the 2030s, after which it may report a slow decline.
The report by the Department of Economic and Social Affairs' Population Division forecasts that the current world population of nearly 7.6 billion will increase to 8.6 billion by 2030, 9.8 billion in 2050 and 11.2 billion in 2100.
After decades of the one-child policy, coupled with new economic and social pressures to succeed, many couples in China have decided to stop with one child, or to not have any at all. China's ageing population remains a cause for concern, with the number of elderly people growing rapidly.