Indo-Mesopotamia relations
Indus–Mesopotamia relations are thought to have developed during the second half of the 3rd millennium BCE, until they came to a halt with the extinction of the Indus Valley Civilization after around 1900 BCE. Mesopotamia had already been an intermediary in the trade of lapis lazuli between the Indus Valley and Egypt since at least about 3200 BCE, in the context of Egypt-Mesopotamia relations. == Neolithic expansion (9000–6500 BCE) == A first period of indirect contacts seems to have occurred as a consequence of the Neolithic Revolution and the diffusion of agriculture after 9000 BCE. The prehistoric agriculture of the Indian subcontinent is thought to have combined local resources, such as humped cattle, with agricultural resources from the Near East as a first step in the 8th–7th millennium BCE, to which were later added resources from Africa and East Asia from the 3rd millennium BCE. Mehrgarh is one of the earliest sites with evidence of farming and herding in the subcontinent.
Source: Wikipedia — Indo-Mesopotamia relations (CC BY-SA 4.0)