The present study reveals with seasonal analysis of various physico-chemical parameters like Air temperature, Water temperature, E. C., pH, Free CO2, Alkalinity, Total hardness, Calcium hardness, Magnesium hardness, Sodium, Potassium, Chlorides, Nitrates, Phosphates, Sulfates and DO of surface water collected from six different sampling sites from Hiranyakeshi River during January 2010 t...