Page "Sarasvati River" Paragraph 49

Evidence from survey fieldwork and recent satellite imagery have been adduced to suggest that the Ghaggar-Hakra system in the undetermined past had the Sutlej and the Yamuna as tributaries, with the Rann of Kutch as the likely remains of its delta.

In this scenario, geological changes diverted the Sutlej towards the Indus and the Yamuna towards the Ganges, following which the river did not have enough water to reach the sea any more and dried up in the Thar desert.