Rapid urbanization and agricultural expansion have led to the overexploitation and degradation of groundwater quality. The present study focuses on analyzing the groundwater quality in the Tiruvallur district of Tamil Nadu, India, through data collection, including maps, topographic sheets, and collection of groundwater samples over the period from 2012 to 2022 in 11 dug well stations. Numerous physiochemical properties, including pH, Total Hardness, Total Dissolved Solids, and Electrical Conductivity, have been used for assessing the Water Quality Index. pH levels in the groundwater samples vary from 5.7 to 7.06, with a mean hardness of 312 ppm. The average TDS and EC in the groundwater were 634.36μs/cm and 1164.5 μs/cm, respectively. The evaluated characteristics were compared with the permissible limits of both national and international standards. Box plot analysis indicated a significant correlation between TDS and EC. Hydro-chemical dynamics were assessed using Piper and Wilcox plots. The Wilcox plot effectively demonstrates the suitability of groundwater for irrigation purposes. The Piper diagram classification indicated that the dominant hydro-chemical facies were Ca2+- Mg2+- Cl- in most samples. The major findings from this study can be applied to areas with similar geographical conditions, highlighting the importance of adopting effective groundwater management strategies.