Two-dimensional electrical resistivity tomography (ERT) and time-domain-induced polarization (TDIP) study in hard rock for groundwater investigation: a case study at Choutuppal Telangana, India

  • Dewashish Kumar
  • Setbandhu Mondal
  • M. J. Nandan
  • P. Harini
  • B. M. V. Soma Sekhar
  • Mrinal K. Sen
Original Paper


Groundwater investigation in a crystalline rock is a crucial task. A study was carried out at Choutuppal Telangana, India, under the pivotal research project of societal relevance. High-resolution electrical resistivity tomography (ERT) and time-domain-induced polarization (TDIP) dataset were collected in a granitic terrain to solve the groundwater problem as people are facing acute shortage of drinking water in the study area. The interpreted results derived from two-dimensional (2D) inverted resistivity models revealed substantial resistivity contrast between the weathered and massive granite and delineated three groundwater prospects zones, where the degree of weathering of fractured granite decreases with depth. On the other hand, the induced polarization (IP) results reflect marginal chargeability contrast, which indicates groundwater prospect zone. The basement of the hard rock aquifer system is clearly delineated showing very high resistivity with a range from 5000 to ~4 × 105 Ohm.m, which is confirmed by drilling at two places. Both the wells are drilled during the month of April and June, 2013, which are productive with a yield varying from 82.14 to 105 l/min. This study may help in future planning for groundwater exploration strategy and development for groundwater resources.


Electrical resistivity Induced polarization Granitic hard rock aquifer Groundwater exploration India 



Our sincere gratitude goes to Prof. Mrinal K. Sen, former Director and present Director CSIR-National Geophysical Research Institute, Hyderabad, India, for his encouragement and full support for the CSIR-800 activity and kind permission for carrying out this important research work for societal benefit through scientific intervention. Dr. V.S. Sarma, a retired chief scientist and project advisor, is duly acknowledged for reviewing this paper. The financial assistance provided for this project work by Council of Scientific and Industrial Research (CSIR), India, under the 12th Five Year Plan of CSIR-800 program is duly acknowledged. Authors thank Dr. S. Thiagarajan and Mr. Varun Kumar for drafting and improving the figures’ quality. Authors acknowledge both the anonymous reviewers for their valuable comments and suggestions that improved the quality of the paper.


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Copyright information

© Saudi Society for Geosciences 2016

Authors and Affiliations

  • Dewashish Kumar
    • 1
  • Setbandhu Mondal
    • 1
  • M. J. Nandan
    • 1
  • P. Harini
    • 1
  • B. M. V. Soma Sekhar
    • 1
  • Mrinal K. Sen
    • 2
  1. 1.Council of Scientific and Industrial Research -National Geophysical Research InstituteHyderabadIndia
  2. 2.University of Texas at AustinAustinUSA

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