"non-India Indians" are called NRIs (non-resident Indians).
And you're right, in the list of ethnic groups in USA by household income, Indian Americans rank number 1.
https://en.wikipedia.org/wiki/List_of_ethnic_groups_in_the_U...
And you're right, in the list of ethnic groups in USA by household income, Indian Americans rank number 1.
https://en.wikipedia.org/wiki/List_of_ethnic_groups_in_the_U...
Foreign citizens who descent from Indian origin are called PIO i.e. person of Indian origin
I fact, in the US it seems to be used to refer to anyone from the subcontinent, not just from India.
Desi is probably a better term, since NROs, PIOs and non Indian brown Asians are usually target audience for such content :)