The objective of the current study is to evaluate the water quality of Pichhola Lake in Udaipur (Rajasthan). An evaluation of the lake's current physical, chemical, and biological state has been made. In three places over the course of six months, from November 2021 to April 22 and June 22, the physical, chemical, and biological characteristics of the lake were examined. When compared to the drinking water standards, the physical-chemical characteristics of the lake were found to be moderate throughout the study period. The following aspects of the lake's typical water quality were identified during the study period: Unpleasant colour and smell, Temperature 28.15°C pH 9.0, EC 819.5 mS/cm, BOD 4.195 ppm, COD 38.45 ppm, DO 5.54 ppm, Total Nitrogen content 8.0 ppm, Alkalinity 259.5 ppm, Total hardness 32.65 ppm, Calcium hardness 8.65 ppm, Magnesium hardness 24.55 ppm, Chloride content 174.1 ppm, Fluoride content 0.5565 ppm.