The pattern I’ve seen emerge is that the only successful candidates just happen to be of the same ethnolinguistic background as the hiring manager. Merely being Indian is not enough.
I suspect this has happened to me at least once. I was a shoe-in, checked all of the boxes, recruiter was saying they really wanted me, and then for the final interview they brought in a mid level guy who asked me questions unrelated to the role (purely a Data Engineer role but he was asking me about the intricacies of ML models). All interviewers were Indian. I would wager they ended up hiring another Indian guy for the role. I would imagine this happens to people of color all the time so I don't "mind" in that sense. The bigger issue to me is U.S. citizens unemployed because roles are filled by H-1B people (which is difficult to prove, but the evidence seems to indicate).
That’s still discrimination.