These platforms are often called workmen's platforms, and were first thought to have been used to thresh grain for what was also thought to have been the nearby "Great Granary."
Excavations in 1997 at the northwest corner of the "granary" platform were undertaken to follow the outline of the structure and document its construction (Trench 1NW)).
Section through the northwestern portion of the "granary" platform directly below the baked brick "granary" walls (Trench 1NW). Similarity of composition of the mud-bricks in the northwestern, southwestern, and southeastern parts of the "granary"
To the south of the "granary" or "great hall" at Harappa is an area with numerous circular working platforms that were built inside small rooms or courtyards. These circular working platforms may have been used for husking grain.