GENERAL KNOWLEDGE

Detailed explanation-1: -Answer: The Indus valley civilization started declining from about 1900 BCE. Changes in climate, decline of trade with Mesopotamians, drying up or flooding of the river, foreign invasion of Indus civilisation might have been the reasons for the decline of this civilization.

Detailed explanation-2: -Many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change. Some experts believe the drying of the Saraswati River, which began around 1900 BCE, was the main cause for climate change, while others conclude that a great flood struck the area.

Detailed explanation-3: -There are many causes for the decline of Harappan civilisation. There were regular floods in the Indus and its tributaries. The overuse of wood for burning bricks that destroyed the forests, which made them migrate. The Aryans, who came from the north, could have attacked them.

Detailed explanation-4: -1800-1500 BC) The Indus Valley Civilization may have met its demise due to invasion. According to one theory by British archaeologist Mortimer Wheeler, a nomadic, Indo-European tribe, called the Aryans, suddenly overwhelmed and conquered the Indus River Valley.

Detailed explanation-5: -drying up of river. deforestation. floodings. loss of control by the rulers and people abandoned Sind and Punjab.