This document discusses using GIS and remote sensing to assess water resources in the Suvarnamukhi watershed in Tumkur district, Karnataka, India. It aims to address challenges like lack of data on natural resources and infrastructure that have hindered development. A detailed study was conducted using GIS, remote sensing, and the SWAT model to analyze surface and groundwater quantity and quality at the watershed level. This will help optimize water resource development and management for the region, which relies on groundwater and has seen depletion of water sources from failures of monsoons. The study provides an effective use of technologies like GIS and remote sensing for decision-making on water resources.