I have long thought - in strategic terms - that if India's Muslims moved in numbers to actively support the violent Jihad then it would be a significant change. With India and Indians noticing first as they live there and sometimes in close proximity.

So along comes a Pew Research report to reinforce my view:
By 2050, the study projects India to be the country with the largest number of Muslims – more than 310 million – even though Hindus will continue to make up a solid majority of India’s population (77%), while Muslims remain a minority (18%).
Link which I suggest is not used, as it tries to download an advert and blcoks the screen:http://www.hindustantimes.com/india-...1-1333402.aspx

The actual Pew report is here:http://www.pewforum.org/2015/04/02/r...ons-2010-2050/