Groundwater draft refers to the quantity of water that is being withdrawn from the aquifer. It is a key input in estimating groundwater balance available in a given area/basin which in turn governs all its developmental activities. Over-estimation of groundwater balance has resulted in a significant loss to the industrial and agricultural activities in many parts of the country and the under-estimation has restricted the planning of developmental activities in some parts. Hence, precise estimation of groundwater draft assumes greater significance.