I am connected to those folks on LinkedIn.

> Also, is "caste radar" a word you made up, or is that a generally-used concept?

I made it up. But I have read content online, where Dalits feel a huge pressure when they are asked which temple they attend, or how they celebrate certain festivals. I don't know what these ritual differences are. Many folks pick up caste from last names, I can only pick up a small subset of them. What I meant to say was that - I can't tell the caste of a person as easily as Hindus. The Dalits I know, I surmised their caste from their entrance rank and many of them didn't hide it.