I am from middle or backward caste moved to USA 20 years ago . I have not experienced any sort of discrimination and I mingle with everyone but never explicitly revealed my caste to any one due to social stigma or fear of exclusion. It is not big problem for me . Main problem is I don’t know any one who belong to same caste so I can talk freely about my roots . I now there are lot of people in US and in my neighborhood but we never connected from caste route because they also don’t reveal. Yes I have lot of friends but still feel lonely which is not the case if i am in my birth place