Within the NAQUIM programme, a comparative study of the physicochemical properties of groundwater fromtheKorbaregion of Chhattisgarh, India, was carried out at fifteen site-to-sample locations. Dug wells and hand pumps were usedtosamplethe water, and standard procedures were used to analyze the water for a number of major physicochemical parameters. Thegroundwater chemistry has significant, complex, and pronounced spatial distribution and variability. The Tilkeja sitehaslowtovery high mineralization, with void pH levels and electrical conductivity (i.e. 6.75-8.0; EC106 and 1758 µS/cm, respectively).Amajor constituent of the water was found to be chloride ions (Cl⁻), in the 7-202 mg/L range. Other major ions containedvariableamounts of bicarbonate HCO₃⁻ (24-476 mg/L), total hardness (TH; 40-630 mg/L), calcium (Ca²⁺ 8-150 mg/L), magnesium(Mg²⁺2.4-61.2 mg/L), and sulphate (SO₄²⁻ 0.1-93.7 mg/L), overall indicating the existence of relatively heterogeneous hydrochemicalconditions as a function of the particular weak dissolved rock. Mean concentration levels for the aforementioned identifiedmajorions/ constituents were found exceeding the water quality or health guidelines for Cl⁻, TH, Ca, Mg, Na, K, and HCO₃ were(mg/L36.27, 134.50, 34.27, 10.88, 29.70, 10.62, and 152.80), respectively. Calcium and magnesium were found in amounts inexcessofthe recommended limits in 20% and 13%, respectively, leading to a classification of the groundwater as very hard. Overall, theresults reveal significant spatial heterogeneity and localized deterioration of groundwater quality in Korba district, emphasizingthe need for continuous monitoring and targeted management strategies. Keywords: Groundwater quality; Physico-chemical parameters; Hydrogeochemistry; NAQUIM; Korba district