Fertility rates decline across religions in India, sharpest drop recorded among Muslims https://www.thehindu.com/data/data-fertility-rates-decline-across-religions-in-india-sharpest-drop-recorded-among-muslims/article36625885.ece September 23, 2021
India's religious composition has remained largely stable as fertility rates have declined across religious groups as fertility rates have declined across all religious groups, according to a study by the Pew Research Center. There has been a significant decline in fertility rates across religious groups, with Muslims recording the highest drop.
Another recent Pew study suggests that religious conversion had little bearing on the composition of the population.
Fertility rate from 1992 to 2012 among muslims drop from 4.4 to 2.6, where among Hindus the drop is from 3.3 to 2.1,. Projections on 2050 are that Hindus will form 77% of India's population, whereas Muslims will be 18%.
The Future of World Religions: Population Growth Projections, 2010-2050 https://www.pewforum.org/2015/04/02/religious-projections-2010-2050/ Why Muslims Are Rising Fastest and the Unaffiliated Are Shrinking as a Share of the World’s Population. The number of Muslims will nearly equal the number of Christians around the world.
India will retain a Hindu majority but also will have the largest Muslim population of any country in the world, surpassing Indonesia.