There is an unwritten rule in Indian cities that violent communities for e.g. Yadavs, Gujjars, Jats and Muslims do not get the rented apartments that easy. Even some professionals like Lawyers, Policemen also do get rented residences that easy. Telling from personal experience.
This is the way.
Are you sure they are the most violent communities? the biggest terrorist of india nathuram godse is a brahmin. So is this gopal sharma who fired on shaheen bagh. The most murderos political leaders in India - Rajiv gandhi against siks and Modi against muslims are brahmin and bania respectively.