Why did the harappan civilization end?

Dear student,

Harappan Civilisation came to an end due to following reasons-

1. By flood- It is speculated that a sudden flood might have submerged the various town and buried them under the thick layer of mud.
2. Climatic change- It is possible that there was climate change and drought took place due to deforestation.
3. Earthquakes- It is also predicted that the nature itself turned the whole land upside down by causing earthquake.
4. Due to the change in the course of Indus river.

Regards.