Question

What were the causes of decay of indus valley civilization?

Answer 1

The causes of decay of indus valley civilization is there is flood comes in river indus

Answer 2

It might have been destroyed by regular floods. An epidemic or some terrible disease might have killed the people. The climate can have also began to change and the region became more and more dry or earthquakes might have been responsible for the destruction of the indus valley civilisation. Thus there is no clear evidence.