Explanation:

Mesopotamia

The Indus Valley people had trade relations with Mesopotamia. On the other hand , people from Mesopotamia reached the Indus , so it is clear that the Harappans conducted the trade between two civilizations Trade goods included terracotta pots, beads, gold and silver, coloured gem stones such as turquoise and lapis lazuli, metals, flints (for making stone tools), seashells and pearls.