Some physicochemical characteristics of lower lake, Bhopal were investigated. Physical parameters such as colour, odour, temperature, electrical conductivity(EC), total suspended solid(TSS), total dissolved substance(TDS), turbidity and chemical parameters such as pH, alkanility, hardness,chloride, sulphate, nitrate, fluoride, dissolved oxygen(DO), chemical oxygen demand(COD), biochemical oxygen demand(BOD) were examined. Results of the study indicated that lake water is highly contaminated and not suitable for drinking purpose as it receives a large amount of raw sewage from its densely populated habitation.