The Ganga River, revered as a sacred entity in India, faces significant pollution challenges due to anthropogenic activities, particularly sewage discharge. This study aims to evaluate the physicochemical parameters of Ganga River water in Haridwar, a prominent pilgrimage site, to assess the impact of sewage discharge on water quality. Parameters such as pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), and nutrient levels (nitrates and phosphates) were analyzed at multiple sampling points along the river. The results indicate a significant deterioration in water quality downstream of sewage discharge points, with elevated levels of BOD, COD, and nutrients. The findings underscore the urgent need for effective sewage treatment and management strategies to preserve the ecological and cultural integrity of the Ganga River.