sentences:  People of Indus valley civilization pushed the original inhabitants of Ganga plains also known as "Kolorian people" towards the north.They moved towards the hills of Himachal Pradesh where they could led a comfortable life and preserve their way of living.In the Vedas they have been referred as the "Dasas", "Dasyus" and "Nishadas" while later they have been known as the "Kinnars", "Nagas" and "Yakshas".