Environment gets degraded more rapidly in spite of various remedial measures undertaken. The man-made activities, abundant usage of inorganic fertilizers and pesticides have still worsened the problem. This in turn affects the water bodies very severely making it unfit for drinking, domestic and even agricultural purposes. In this background, the present work was initiated to analyze the extent of deterioration of water in a defined stretch of River Giri, Himachal Pradesh, India. The physical and chemical qualities of water were analyzed and the extent of pollution was found out and presented in detail.