A Non Resident Indian or NRI is someone, most usually of Indian origin, residing outside India.
There are Indians living in India who try to make their lifestyle as un-Indian as they can possibly manage. These people are usually fabulously wealthy. They try to isolate themselves from the material reality of India as much as they can. A friend of ours refers to these people as “Resident Non Indians”, which is a great way of summarising the way they try to live.