Question

The largest concentration of Harappan sites has been found along the

Answer 1

The largest concentration of Harappan sites has been found along the seasonal Ghaggar-Hakra river that flowed through northwest India and eastern Pakistan.

Nearly 500 Harappan sites have been found on the dried up beds of this river and its tributaries while the number was only nearly 100 on the beds of other rivers and their tributaries.