Question

give reasons for the decline of the indus valley civilisation ​

Answer 1

Answer:

actually the reasons are not clear till now

Explanation:

but it is believed that

may be the civilisation has met with an natural calamity

or from an attack from the Aryan tribes

Answer 2

Answer:

The reasons for the decline of Indus valley civilisation are as follows---→_→→_→

Some historians believe that the Aryan Invasion is the root cause of the decline of Harappan civilization. Human remains have been excavated and it points towards some violent cause of their death.

Many historians do not believe in the Aryan Invasion theory. They believe the main cause of the sudden decline is climate change.

Huge climate change or natural calamities might have been a cause of the ruin of Harappan civilization. It has been found that some climate change happened around 2000 BC. These changes in climate led to floods in plains and cities.