The ‘ upper-town area’ of the cities of indus valley called ‘CITADEL AREA’.
As somebody else has answered it, it has been estimated from 3300 BC to 1300 BC. The peak period is said to be from 2500 BC to 2000 BC.
Mohanjo-daro and Harappa
from 3300 BC to 1300 BC
Rice and fish were staple foods of the Indus Valley civilization.