The Indus river valley could have also been a great place to live. The region is very similar compared to the Fertile Crescent and other civilizations have/will live there. Agriculture would be of abundance and just like the Fertile Crescent, the soil will be rich and fertile. If you were to ever get attacked, I would suggest searching for the Indus River Valley as a backup place to live. Good luck on your search for a permanent Civilization.