Occupation
3 possible occupation that would existed during the
period of the Indus Valley Civilisation are :
1. Accessory maker
An accessory maker would have existed because there
were necklaces made of beads in that time. 
Photo taken from:
http://www.harappa.com/har/har0.html
2. Cook
A cook would have existed because there were kitchen existed in that time.
(Kitchen) Photo taken from:
http://www.harappa.com/har/har0.html3. Farmer
A farmer would have existed because there were massive plantations at that time.
http://www.harappa.com/har/har0.html