Nepal constitutes different sub-group of Aryans. Such as Shah, Thakuris are Iranian Aryans. They came to Nepal and in Indian sub-continent much later than the original Aryans. They are the Brahmans and Chhetries. Now they are all mixed but in the past, only Brahmans were the pure Aryans. All Aryans are originally from the area where right now is The Black sea. They migrated to east and west from there. They went up to Norway in the west and Nepal in the east.