Question

how are sindhu plains formed

Answer 1

Sarasvati-Sindhu civilization flourished circa 3000 to 1700 BC on the river valleys of Indus and Sarasvati rivers. The drying-up of the Sarasvati river led to migrations of people eastwards to the Ganga-Yamuna doab and southwards from the Rann of Kutch and Pravara (feeder into the Godavari river near Daimabad in Maharashtra) river valley, along the Arabian sea coast.