What did the Indus Valley civilization use their granaries for

The Indus Valley civilization used their granaries for storing surplus food, such as wheat, barley, and rice. These granaries were likely used to store harvested crops to ensure food security during times of scarcity or as a means of redistributing food to maintain social and economic stability within the civilization. The granaries also served as important economic centers for trade and commerce, as surplus grain could be exchanged for other goods and services.