Reminder: The Aryans who invaded Iran and India were biologically Northern European and most genetically similar to modern Finns, Scandinavians, and Russians (but not identical).
Modern Indo-Iranian Pamiris trace almost half of their ancestry to this population on average and they often exhibit 'Nordic' phenotypes, described as "proto-Nordid" by old anthropologists: http://humanphenotypes.net/ProtoNordid.html
Genetic study: https://www.science.org/doi/10.1126/science.aat7487
