The Indus river and the Ghaggar-Hakra river.

The Ghaggar-Hakra (Sarasvati) river and the Indus river.

There were two main rivers in the Indus Valley Civilization; The Ghaggar-Hakra and the Indus.

Yes, for example - Astore River Bara River Chenab River Gambila River Ghaggar-Hakra river Gilgit River Gomal River Gujjar Nala Haro River Hingol River Hispar River Indus River

The Great Indian Desert was formed around 4000 years ago. It is said t o have formed when the Ghaggar-Hakra river dried up. It depleted the soil in the area and caused aridity.