"Thus, whereas the text passages about the historical Battle of the Ten Kings (incidentally near the Ravi river, right on the present Indo-Pak border) repeatedly have the Vedic king Sudās come from the East and his Iranian-named enemies from the West, the translators insisted on having Sudās come from the West and fight against the Eastern “Aboriginals”."
January 1, 1970
https://en.wikiquote.org/wiki/Battle_of_the_Ten_Kings