Dheki is an agricultural tool used for threshing, to separate rice grains from their outer husks, while leaving the bran layer, thus producing brown rice. Dhekis have generally fallen into disuse because of the availability of technologies such as combine harvesters that require much less physical labour. In earlier times a Dheki was an important part of village life in West Bengal and in parts of India, notably Assam and Chhattisgarh. It was generally operated by two or three women.
A Dheki consists of a heavy wooden lever, usually about 72 in (1.8m) long, supported on a pedestal about 18 in (46cm) high, which provides a fulcrum. At one end of the lever is a vertical wooden cylinder which functions as pestle. It is raised by the lever, and that falls down its own weight. The fulcrum of the lever is placed at five-eighths of the length of the lever from the pestle. (Link to ......Impact Study.......)

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