Abstract This thesis presents a comprehensive assessment of groundwater vulnerability through the application and comparative analysis of five distinct methods: DRASTIC, SINTACS, GOD, SI, and a remote sensing-based approach. The primary objective is to evaluate the effectiveness of these methodologies in identifying and mapping areas at risk of contamination, thereby providing a robust framework for groundwater vulnerability assessment. The DRASTIC method, which stands for Depth to water, Recharge, Aquifer media, Soil media, Topography, Impact of the vadose zone, and Hydraulic conductivity, utilizes these seven hydrogeological parameters to generate detailed vulnerability maps. Widely recognized for its comprehensive approach, DRASTIC has been extensively used in various hydrogeological studies.