The water quality of Karola River is decaying day by day. The comparison of the same parameters of year 2004 and year 2014-2015 prove the fact very prominently. The parameters like pH, Temperature, Conductivity, TDS, DO, Chloride, Alkalinity, Total Hardness, Mg-Hardness, Ca-Hardness, Turbidity etc. has been used for this purpose and all the results indicate the increasing rate in 2014-2015 specially the DO values are indicative of an alarming situation.