Consider the following assertion: In the Pleistocene period either the Yamuna once flowed into the I

Question

Consider the following assertion: In the Pleistocene period either the Yamuna once flowed into the Indus, or the Sutlej flowed into the Yamuna. Which is/are the basis of this assertion? 1. The Nadi-Sukta of the Rigveda 2. The explorations of the Sutlej and Yamuna by Robert Bruce Foote 3. The presence of the same species of dolphins in both the Indus and Ganga river systems

Accepted Answer

The presence of closely related blind river dolphins (Platanista gangetica minor in Indus; Platanista gangetica gangetica in Ganga) in two completely separated basins is a primary biological basis for asserting the two river systems were once connected. The Nadi-Sukta reflects Holocene geography, not Pleistocene shifts. Robert Bruce Foote focused on Stone Age archaeology in South India, not river geology.