Assessment of Physico-Chemical parameters of Bijavara lake, Tumkur district was done during the period of January 2016 to June 2016. Fresh water is a source of drinking water used by the rural and urban population of India. It supports the life of the aquatic organisms. It is getting polluted by dumping of domestic sewage, agricultural wastes, Industrial effluents etc. The water samples were collected on the monthly basis from three sampling sites. The analysis was carried out for the parameters like Temperature, pH, Turbidity, Total Dissolved Solids (TDS), Alkalinity, Biological Oxygen Demand (BOD).