"With regard to Mesopotamian–Vedic relations we should take into account at least two simple but very instructive facts. First, when in the 24th century king Sargon of Agade refers to the ships in his harbour the ships are those from other countries, that is Dilmun, Magan and Meluhha. If Sargon had a mighty ocean-going fleet to trade with other countries he would have been boasting of Mesopotamian ships reaching, or returning from, foreign harbours. Second, in the Mesopotamian text Enmerkar and the Lord of Aratta it is king Enmerkar of Uruk who sends a messenger and merchants (by land) to distant Aratta (a country north-west of Punjab) to obtain goods (not the other way round)."
January 1, 1970
https://en.wikiquote.org/wiki/Indus%E2%80%93Mesopotamia_relations