I've seen some very smart people come out of IIT. I've also seen some flat air thieves from the same place.
My first filter: Shitcan any resumes from Brahmin (high caste), find the lower caste assistants that their parents paid to 'help' them graduate.
Brahmin will always reveal themselves. Lie (if you have to) and tell stories about how important/blue blooded your family are back in Europe. They can't help but brag about their family owning an Indian state. When they do this, discard their apps.
India has the same problem England used to. An upper crust of inbred, worthless fools that just know they are better, but do no actual work.