Why was Indus Valley Civilization non Aryan?

There are many reasons to prove that Indus civilization is non Aryan. There are evidences of arrival of Nomadic Aryans to India only from 1800 to 1500 BC. read more

The Indus Valley Civilization (IVC) was non-Aryan and probably Proto-Dravidians. The Indo-European migrated from Eurasia into South Asia after the decline of the Indus Valley Civilization and probably adopted and assumed the its heritage by cultural appropriation of history and religion of Indus Valley Civilization. read more

And each Aryan tribe was ruled by a king who felt obliged to consult with tribal councils. Aryan tribes spread out across the Indus Valley region. They warred against local, non-Aryan people, and they settled in areas that provided them with pasture for their animals. read more