The 2D Electrical Resistviity Imaging (ERI) method was carried out in crystalline limestone in Puthur Mines, Tirunelveli, Tamilnadu, India. The objectives of the study were to investigate the crystalline limestone characteristics and calcic granulite of the subsurface formations. Three profiles were carried out using Wenner conFigureuration. The 2D ERI study has been carried out using the equipment resistivity meter, Multicore cable, rods and Res2DINV software. The collected resistivity data were calculated using Res2DINV software to develop the apparent resistivity pseudosectioon. The Picture display were, the range of resistivity in the three profiles obtained average apparent resistivity (1-50 Ohm weather soil, 100-600 weathered limestone, 1400-14000 Ohm.m- Calcic Granulite rock) indicate the subsurface geological condition of the Puthur open cast mine. The interpretation of resistivity pseudosection result is compared with the open cast mines borehole.
