Abstract
In this study, 7 Vertical Electrical Soundings were carried out at coastal region of east coast of lower Tamiraparani river basin, Thoothukudi district to understand the fresh groundwater potential zones. Geologically it comprises with Quarternary Marine Deposit and Quarternary Fluvio-Marine Formation. The field resistivity data were interpreted with ipi2win software. The overall resistivity and layer thickness are varied from 0.153 ohm m to 4902ohm m and 0.49m to 78.7m respectively. From the resistivity interpretation, it is suggested that the VES-2, 3 & 7 are favourable for fresh groundwater development in the coastal zone of sedimentary terrain.