The study was conducted to analyze surface water quality fluctuations of Hussain Sagar lake and Saroornagar lake water from the seasonal variation from 2016 to 2020 year. Total fiver year wise water quality monitoring was analyzed including temperature, color, odor, turbidity, pH, electrical conductivity (EC), total dissolved solids (TDS), dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), total hardness (TH as CaCO3), calcium (Ca2+), magnesium (Mg2+), total alkalinity (TA), chloride (Cl-), nitrate (NO3-), sulphate (SO42-) and Fluoride (F-). The study used water quality index (WQI) and principal component analysis (PCA) methods to analyze surface water quality. The results showed that the surface water was contaminated with organics (low DO and high BOD, COD), and chemical parameters like TDS, TH, Ca2+, TA, Cl-, NO3- and F- concentrations exceeded the allowable limits of BIS. WQI classified water quality from bad to very good (WQI = 50 to 100) due to the impact of hydrological conditions, navigation, and urban and industrial zones. Seasonal variations in water quality parameters were recorded and compared with standards, and pollution status was studied using the water quality index.