I read his post which is mostly nonsense. There is no circumcision among people of other religions in India. May be in case of hypospadias or some such medical irregularity. I do not know if a few Americanized Indians have adopted it under the belief of its supposed hygiene or whatever, but nothing I have seen or heard from anyone and considering how derogatorily it is viewed among the Hindus, it is definitely an improbability.
I suspect mostly given his chosen name @
Bombaywalla, he comes from a mixed religious background and would have been circumscribed if his mom is a Muslim. This is only a guess and if true, this is where his misinformation comes from.