“…For delineating groundwater potential/prospective zones Geographical information system (GIS) has been found to be an effective tool. In recent years, extensive use of satellite remote sensing data along with Survey of India topographical maps, collateral information and limited field checks, has made it easier to establish the base line information for groundwater prospective zones (Singh et al, 1993;Chi and Lee, 1994;Haridass et al, 1994;Tiwari and Rai, 1996;Das et al, 1997;Ravindran and Jeyaram, 1997;Pratap et al, 1997;Pal et al, 1997;Pradeep, 1998;Subba Rao and Prathap Reddy, 1999;Thomas et al, 1999;Harinarayana et al, 2000;Muralidhar et al, 2000;Obi Reddy et al, 2000). The occurrence and movement of groundwater in an area is governed by several factors such as topography, lithology, geological structure, depth of weathering, extent of fractures, slope, drainage pattern, land use and land cover, climatic conditions and inter relationships between these factors (Pratap et al, 2000).…”