Lakes are vital resources, natural surface water course also play a crucial role in groundwater recharge and they regulate the urban climate nowadays. Sewage discharge, improper agricultural practices and urban run offs have disrupted the ecosystem .In Hyderabad there are 185 lakes in that only 10 lakes have good water quality current situation due to domestic sewage and industrial waste water discharge are mixed with lake water. For our study we have selected 2 lakes, Hussain sagar, and Saroor nagar from those 175 lakes. This paper examines the present lake water quality, Four sample stations were located around two lakes totally24 samples were collected as per standard methods and, samples have been analyzed for Physico-Chemical parameters such as pH, TH, TDS, Ca2+, Mg2+,Cl-, HCO3, CO3, DO,BOD,COD. Results obtained were compared with water quality standards, irrigation standards and compared with previous study to analyzed that parameters limits.pH is observed for Hussain sagar lake are fall within the acceptable limit, for Sarooro nagar is observed are increased.TH, TDS, Ca2+, Mg2+,Cl-, HCO3, CO3 were exceeds the acceptable limits , DO,BOD and COD for 2 lakes are within the acceptable limits at present because of covid19 lockdown last year all festivals were banned.

Water is one of the most essential elements for survival of living organism. Water consumption of a person is 135l/c/day. In current scenario, due to increase in population leads to occupy the rivers space. Now a days due to deteriorating natural water bodies, human depends upon sub surface water and ground water to meet their daily needs. In future these subsurface water source also become deteriorate due to over exploitation. In future it leads to subsurface and surface water scarcity so, many researchers finding alternate sources, sustainable water management techniques for proper monitoring the present sources to reduce water demand. There are 400 small and biglakes available in Hyderabad City. Out of which 169 lakes were notified by Hyderabad Metropolitan Development Authority (HMDA) for protection and conservation of water spread area. We have selected Nagole in Hyderabad City of Telangana state for conducting a study on assessing groundwater quality. Thirteen parameters were chosen for the analysis such as pH, EC, Total dissolved solids, Turbidity, Alkanlinity, Chlorine, Sodium, Potassium, Total hardness, BOD, COD, Fluorine, Sulphate. Finally, results of the analysis were compared with water quality standards such as BIS 10500 (1991) of water sample. From this study, it was observed that EC exceeded the Permissible limit which impacts of more ion presence in the samples, alkalinity also higher than the permissible limit. The high content of alkalinity in water results in formation of chemical scale or precipitate which would clog piping or form a scale on filter, sodium exceeds the permissible limit. These parameters were higher in few sampling station while other parameters were within the permissible limits