Engineering Geophysics Manpower

Dr.Sandeep Nelliat

Scientist-IV & Head of Department 

Dr. Sandeep Nelliat, a Geophysicist by education, completed his MSc(Tech) degree from Cochin University of Science & Technology, Kerala and obtained his doctorate from Indian School of Mines, Dhanbad. Dr. Sandeep joined the Engineering Geophysics Department of NIRM in the year 1999 and is presently placed as Scientist-III. In over 17 years of his allegiance to Near Surface Geophysics, he contributed to R&D by successfully completing more than 120 sponsored projects. His studies are mainly related to site characterization by rock mass classification, ground stability and structural integrity analysis, evaluation of rock mass (in-situ) for underground caverns, tunnels, mines, foundation of dams, metro rail and other rock engineering sites. He acquired expertise in geophysical tomography and high resolution surface & borehole investigations for complex geology and urban environment. He has authored over 30 research papers in journals and conferences and has delivered lectures to practicing engineers as part of manpower training programmes. He has visited Norway and Bhutan and has affiliation to several professional bodies like SEG, ISRM, ISEG, AEG, IGU, MGMI, ISRMTT etc.

Dr. Butchi Babu Bongu


Dr.ButchiBabu B. is a Geophysicist, completed his MSc (Tech.,) from Andhra University, Visakhapatnam in 2005. He joined as Scientist-I in 2010 and currently working as Scientist-II in Engineering Geophysics Department. Prior to joining, worked as CSIR-Senior Research Fellow at National Geophysical Research Institute, Hyderabad and has experience in High resolution Aeromagnetic, Electromagnetic and Radiometric data Acquisition, Processing and Interpretation. At NIRM, He contributed to solve many engineering problems in civil, mining and hydroelectric projects by using surface and borehole geophysical techniques. He got experience in high resolution borehole tomography using seismic and GPR techniques. He is the key investigator for the industry sponsored and R&D projects and published more than 15 research papers in International/National journals and conferences. He has visited Belgium, Bhutan and has affiliation to several professional bodies like SEG, SPG, ISRM, ISEG, AEG, IGU, MGMI, ISRMTT etc.

Mr. Y V Sivaram


After obtaining Post-Diploma (1990) from Indian School of Mines, Dhanbad Mr. Sivaram is associated with all the key activities of this group since 1998. From 1990-98, he was associated with Electronics Instrumentation department and involved in Design, Fabrication and Installation of Seismic/Micro-Seismic Networks. Got patent for Roof Stability Tester developed for Coal mines under S & T project GOI. Has been working for longer than 25 years in Shallow Geophysical investigations He is responsible for acquisition of seismic refraction/tomography (both P & S) survey, GPR profiling/reflection, Resistivity sounding and profiling data. Developed battery operated GPR for coal mines under Collaboration Project with NGI, Norway (INPIC). Also for upkeep and maintenance of all equipment of the EG dept. Completed over 120 research and industry sponsored projects as a co-investigator, including S&T project of Ministry of Coal and Mines and also contributed more than 30 technical papers as a Co-author

Dr. Goverdhan K


Dr. Goverdhan Kantepudi obtained his post-graduate degree in Geophysics also awarded doctor of philosophy (Ph.D.) from Osmania University (OU), Hyderabad. He started up a scientific career at CSIR-National Geophysical Research Institute (CSIR-NGRI), Hyderabad. Dr. Goverdhan Kantepudi has made unique and sustained research contributions towards seismotectonic studies along east coast of India from Kakinada to Howrah Geotransect. This study will help in understanding the soil behavior during earthquakes near the major lineament and it will be useful for establishing the power plants, dams, irrigation lines, nuclear power projects in the vicinity of the seismogenic lineaments/faults along the coastal parts. Besides well cited research papers in leading journals; he has participated more than twenty national and international conferences/seminars/workshops; he has contributed significantly to the important R&D projects for the ministry of S&T, ministry of mines and various sponsored projects. He has expertise in the field of geophysical data acquisition, processing and interpretation using various Geophysical techniques such as 2D High Resolution Seismic Survey (HRSS) for coal/lignite exploration, Gravity, Magnetic, Geophysical logging and shallow seismic studies (MASW and Refraction) for depth to bed rock investigations, mineral exploration, site characterization studies towards microzonation, shear zone identifications & engineering projects. Overall more than ten years experience in the near surface geophysics. He has selected in ONGC merit scholarship during post graduation period from 2004 to 2006. He is also several memberships in earth science & rock mechanics related organizations.

Mr. Sashi Nath Varma

Scientific Assistant-I 

Completed Diploma in Electronics and Communication Engineering from BTE Delhi and joined NIRM in 2015 on post of Scientific Assistant-I. Working with the group of NIRM EGP in the field of various Geophysical investigations by Tomography, Resistivity, GPR, and Seismic method using various Geophysical instruments.