This is a remarkable claim. Not a single Indian in tech that I know in my personal or professional life - numbering over a hundred - has ever disputed that Indians have strong (sub)ethnic affinities that color their views hiring. In addition, nepotism is a real thing in Indian culture. I’d be laughed out of a room with aforesaid folks if I claimed “Indian managers have a tendency to hire anyone else but Indians”. This is either deliberately misleading to “save face” on behalf of the community (another cultural trait), or you’re utterly oblivious in an outlying way to how things work.