The large number of protohistoric settlements, dating from c. 4000 BC to 1500 BC, could have flourished along this river only if it was flowing peren… - V. N. Misra

V.N. Misra: ‘Late Harappan sites are concentrated on the tributaries of the [Sarasvatī] river, originating in the Siwalik Hills. They appear to be a consequence of the desiccation of the river and mass migration of the population to less dry regions near the Siwalik Hills and across the Yamuna.’

The description of the location, size and desiccation of the Sarasvatī River in the Vedic, epic and classical literature perfectly matches the features and history of the Ghaggar-Hakra River. Therefore it can be stated with certainty that the present Ghaggar-Hakra is nothing but a remnant of the Rgvedic Sarasvatī which was the lifeline of the Indus Civilization.

There is general agreement among scholars that all this demonstrates that "it can be stated with certainty that the present Ghaggar-Hakra is nothing but a remnant of the RgVedic Sarasvati which was the lifeline of the Indus Civilization".