Do you mean Indian instead of Hindu? In context of your post, it would seem Indian is what you meant, given you refer to everyone else by nationality.

I see it as a common conflation where people substitute Hindu (religion) with Hindi (language) with Indian (nationality/heritage).

But yes, as an Indian myself, we often have a different understanding of personal space and contact versus European/American cultures. It's not usually meant to be anything malicious, but it is very jarring in comparison.