The exploration of groundwater resources in hard rock terrains is a difficult task as the groundwater bearing fracture zones are very thin and their extent is not uniform. It is quite common in hard rock terrains that two wells separated by a few meters, give different yields - some times one being totally dry while the other with copious yield. With the IGIS developed survey techniques coupled with IGIS-make high resolution Resistivity meters, it is possible to successfully scan the subsurface formations and identify the exact depth and extent of aquifer strata in hard rock terrains.