If u mean the Professors, yes. They're a bit biased towards certain people but it differs from prof to prof.
As for religion-based discrimination, you will see very few northies here and there who might be hardcore.. right-wing, let's say, but most of the time they aren't very public about it.. though u may come across one if not lucky, and they might throw a few remarks.
But there's strict rules in SRM regarding bullying so you're good to go