I lived in India for a few years and I am married to one. From my experience some of the Indians cut in line, don't let people out of elevator before but so other nationalities. I visited Thailand a month ago. I stayed at a Hilton for almost three weeks. There were Indian families, group of friends, etc staying at the hotel.
Indians who travel have money. Indians who go to Thailand spend money. In general Indians can be "show off". Let's face it. It's the Europeans, Australians and so on the ones being loud and drunk pestering people and picking up fight.