I'm not going to say that this is an entirely new problem but this would seem to be a particularly bad turn of events. https://www.vox.com/future-perfect/2019/12/12/21010975/india-muslim-citizenship-bill-national-register
The 1947 Partition of British India was about as bloody and cruel as anything in human history. Memories are long in that part of the world, I fear.
update https://www.aljazeera.com/news/2019/12/india-top-court-refuses-stop-citizenship-law-implementation-191218080338840.html
while we're at it, how about some Hindu Supremacists (long read) https://www.theguardian.com/world/2020/feb/20/hindu-supremacists-nationalism-tearing-india-apart-modi-bjp-rss-jnu-attacks