Inded. And of course both Europe and South Asian Indo-Aryans have many haplogroups beside their main local haplogroups. But it also must be said that it is not correct to evaluate if people are IE or not based on haplogroups. IE is a language and was certainly associated with a certain culture, but it is not determined by Y-DNA haplogroups, and added to that is the fact that Proto-IE themselves definitely carried many different haplogroups, though R1b and R1a prevailed in different regions, and Y-DNA haplogroups can and did boom in frequency in local populations due to founder effects, bottlenecks, random social selection or mere genetic drift. You might well have had a 1% percentage of a certain haplogroup in an IE population, and thousands of years later it might have increased to 80% frequency in one of its descendant groups.