There is no indication of any invasion of Indus towns nor is any artefact attributable to the so-called ‘invaders’. - Shikaripura Ranganatha Rao

S.R.Rao found at Lothal “terracotta wheels ...with diagonal lines suggesting spokes” (1973:124).

When I was repairing the temple of Dwarkadeesh at Dwaraka (on land) I had to demolish a modern building in front of it and I found the 9th Century temple of Vishnu. I got curious and dug further deeper (30 ft) in 1979-80 on land. We found two earlier temples, a whole wall and figures of Vishnu. We dug further and actually found eroded material of a township lying at the bottom. Then arose the question of dating the remains of the township destroyed by the sea. Thermo-luminescence dating revealed a date of 1520 B.C. The Mahabharata refers to Dwaraka ...

The chain of tectonic events... diverted the Satluj westward [into the Indus] and the Palaeo Yamuna eastward [into the Ganga]... This explains the ’death’ of such a mighty river [ i.e, Sarasvati] ... because its main feeders, the Satluj and Palaeo Yamuna were weaned away from it by the Indus and the Ganga respectively.