This story briefly reflects my observations on rahats (or Persian Wheels) during field research in India for my Master's dissertation at IHE-Delft. These wheels are an ancient technology used to lift water and have been in use for the last 800 years in the Indian subcontinent (and in other parts of the world as well, spanning Southern Europe and North Africa). They were possibly introduced to North West India sometime during the early Delhi Sultanates as the wheels made access to water considerably easier across the region.
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