Q. Which was the largest building in Indus Valley Civilization?
Answer: A granary
Notes: The Great Granary of Harappa was the largest building of the Indus Valley Civilization. It was about 45 meters long and 15 meters wide. It was meant to store food grains. It had lines of circular brick platforms for pounding grain. There were barrack like quarters for workmen. The granary also had smaller halls and corridors. It was used to store surplus food grains. There were two rows of granaries. Each row had six granaries. A similar granary has been found in Mohanjodaro. All the granaries were built close to the river bank so that grains could be easily transported with the help of boats.