Satellite data provide reliable information of the extent of groundwater irrigated crops and their spatial distribution which helps in estimating the groundwater draft. Due to the presence of chlorophyll, the irrigated crops have maximum absorption in 0.63-0.69 micrometer region and high reflection in the infrared (0.77 to 0.86 micrometer) region of the electromagnetic (EM) spectrum. Because of characteristic absorption and reflection in different spectral bands, irrigated areas can be easily mapped by digital analysis of satellite data. From the total irrigated area, the area irrigated by major and minor irrigation sources can be excluded based on the association of such areas with surface water bodies and canal systems. Using multi-temporal satellite data and crop calendar supported by limited ground truth, the spatial extent of different crops irrigated by groundwater could be mapped. By multiplying the acreage of different crop types obtained from satellite data with the crop water requirement with respect to crop, the groundwater draft could be estimated more accurately.