Question

What was the cause of the decline of the indus valley civilization?

Answer 1

Aryan invaders killed people and destroyed the Indus Valley Civilization. ... The destruction of these people by Aryans was a sad event in history. The Aryans lived in villages and knew nothing of urban life. Thus it took hundred of years again for India to have beautiful cities like Mohen-jo-daro and Harappa

Answer 2

heya answer is here......

◇Though the reason of the decline is not known, but through excavations it is clear that fall of the Harappan Civilizationoccurred between 1800 BC to 1700 BC. It is commonly believed that the Aryans were the next settlers. ...