Question

What was the causes of decline the harrapas

Answer 1

Answer:

Some Historians attribute the decline of the Harappan culture to the river Indus changing its course frequently. As such the Indus delta shifted away from Mohenjo-Daro and water became scarce. Water scarcity must have led to the exodus of the Harappan people to other places.

Answer 2

Answer:

Some says that by the climatical change and some says that by the drying of Saraswati river which begans about 1900BCE.