PFI pointed to the findings from the last nationwide Census in India, conducted in 2011, which found that the decadal growth rate for Muslims had declined over the past three decades, decreasing from 32.9% in 1981-1991 to 24.6% in 2001-2011. In contrast, the growth rate for Hindus fell from 22.7% to 16.8% over the same period​​.

A cross country analysis’ studied data on religious populations for 167 countries. As per the report Hindu population declined by 7.82%, while the Muslim population showed the most positive impact with an increase of 14.