Awareness of the importance of foodgrain storage in the Harappan era is evident from excavations at Harappa (2300-1750 BCE ). Archaeologists have found evidence of well-planned and well-utilized storage bins. A typical bin was quite large and had a floor area of 92 sq. m (1,000 sq. ft). The bin was built on a raised podium and was then systematically arranged in a row of six with a passage in between. (Pic: Warehouse remains at Lothal, Gujarat)