R. Madhumitha and K. Kumaraswamy 2022. Evaluation of Groundwater Quality for Drinking Purpose in the Noyyal River Basin, Tamil Nadu through Water Quality Index (WQI) and GIS Methods. National Geographical Journal of India . 68, 2 (Jun. 2022), 111–119. DOI:https://doi.org/10.48008/ngji.1799.