What advantages would there have been to settle along the Indus River near its mouth at the Arabian Sea as opposed to farther inland? What disadvantages might there have been to this location?

The advantages there would have been to living near both the Arabian and Indus River would have been that there would have been fresh water for farming, bathing and drinking. There was also fertile land to farm on. There were also disadvantages which would have been that along the shorelines there would have been the Eastern Mountains, taking up space for multipul things.