The present study is an attempt to delineate the groundwater potential zones in Dindigul District, Tamil Nadu, India, using an integrated approach of geospatial techniques. The study is based on identifying the physical features that promote the groundwater potential and bringing it into the GIS platform. On the basis of corresponding contribution of each of these physical features towards groundwater potential the feature are identified as geomorphology, geology, slope, soil, land use and land cover, rainfall, drainage density and lineament density. These features are weighted and ranked depending on their capability to hold groundwater, using the integration method in GIS for calculating the groundwater potential index. Each weighted thematic layer is statistically computed to get the groundwater potential zones. The Analytic Hierarchy Approach (AHP) is used to determine the weights of various themes for identifying the groundwater potential zone based on weights assignment and normalization with respect to the relative contribution of the different themes to groundwater occurrence. The groundwater potential zones were obtained by overlaying all the thematic maps using the spatial analysis tools in ArcGIS 10.1. It is identified as five categories of groundwater potential zones i.e. Very Good, Good, Moderate, Poor and Very Poor groundwater potential zones. The result depicts the groundwater potential zones in the study area and found to be helpful in better planning and management of groundwater resources.
