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Sri Niwas, ; Gupta, Pravin K. (2011) Combined straightforward inversion of resistivity and induced polarization (time-domain) sounding data Journal of Applied Geophysics, 75 (2). pp. 319-326. ISSN 0926-9851

Kumar, Krishna ; Gupta, Pravin K. ; Sri Niwas, (2011) Efficient two-dimensional magnetotellurics modelling using implicitly restarted Lanczos method Journal of Earth System Science, 120 (4). pp. 595-604. ISSN 0253-4126

Sri Niwas, ; Tezkan, B. ; Israil, Mohd (2011) Aquifer hydraulic conductivity estimation from surface geoelectrical measurements for Krauthausen test site, Germany Hydrogeology Journal, 19 (2). pp. 307-315. ISSN 1431-2174

Sri Niwas, (2010) Nonlinear electrical conductivity response of shaly-sand reservoir-physical explanation Current Science, 99 (8). pp. 1017-1021. ISSN 0011-3891

Israil, M. ; Tyagi, D. K. ; Gupta, P. K. ; Sri Niwas, (2008) Magnetotelluric investigations for imaging electrical structure of Garhwal Himalayan corridor, Uttarakhand, India Journal of Earth System Science, 117 (3). pp. 189-200. ISSN 0253-4126

Israil, M. ; Tyagi, D. K. ; Gupta, P. K. ; Sri Niwas, (2008) Electrical structure of Garhwal Himalayan region, India, inferred from magnetotelluric Himalayan Journal of Sciences, 5 (7). pp. 70-71. ISSN 1727-5210

Saluja, Vikas ; Sri Niwas, (2007) Estimation of permeability of shaly sand from Induced Polarization relaxation time spectra Journal of Indian Geophysical Union, 11 (3). pp. 135-142.

Sri Niwas, ; Gupta, P. K. ; de Lima, O. A. L. (2007) Nonlinear electrical conductivity response of shaly san14d reservoir Current Science, 92 (5). pp. 612-617. ISSN 0011-3891

Sri Niwas, ; Gupta, P. K. ; Gaur, V. K. (2007) Straightforward inversion of MT data using normalized impedance function Geophysics, 72 (1). F19-F24. ISSN 0016-8033

Israil, M. ; Sri Niwas, ; de Lima, O. A. L. (2007) Inversion of resistivity sounding data: a critical appraisal of three numerical techniques Proceedings of the National Academy of Sciences, India - Section A, 77 (4). pp. 321-328. ISSN 0369-8203

Gupta, P. K. ; Sri Niwas, ; Chaudhary, Neeta (2006) Fast computation of Hankel Transform using orthonormal exponential approximation of complex kernel function Journal of Earth System Science, 115 (3). pp. 267-276. ISSN 0253-4126

Sri Niwas, ; Gupta, Pravin K. ; de Lima, Olivar A. L. (2006) Nonlinear electrical response of saturated shaley sand reservoir and its asymptotic approximations Geophysics, 71 (3). G129-G133. ISSN 0016-8033

Sri Niwas, ; de Lima, O. A. L. (2006) Unified equation for straightforward inversion scheme on vertical electrical sounding data Geofizika, 23 (1). pp. 21-35. ISSN 0352-3659

de Lima, Olivar A. L. ; Clennell, Michael Ben ; Nery, Geraldo Gira̅o ; Sri Niwas, (2005) A volumetric approach for the resistivity response of fresh water shaly sandstone Geophysics, 70 (1). F1-F10. ISSN 0016-8033

Sri Niwas, ; de Lima, Olivar A. L. (2003) Aquifer parameter estimation from surface resistivity data Ground Water, 41 (1). pp. 94-99. ISSN 0017-467X

Porsani, Milton J. ; Sri Niwas, ; Ferreira, Niraldo R. (2001) Robust inversion of vertical electrical sounding data using a multiple reweighted least-squares method Geophysical Prospecting, 49 (2). pp. 255-264. ISSN 0016-8025

de Lima, O. A. L. ; Sri Niwas, (2000) Estimation of hydraulic parameters of shaly sandstone aquifers from geoelectrical measurements Journal of Hydrology, 235 (1-2). pp. 12-26. ISSN 0022-1694

Singh, Arvind K. ; Rai, J. ; Sri Niwas, (2000) Variation of aerosols in relation to some meteorological parameters during different weather conditions Atmósfera, 13 (3). pp. 177-184. ISSN 0187-6236

Gupta, P. K. ; Sri Niwas, ; Rastogi, Anupma (1999) EM2INV - a finite difference based algorithm for two-dimensional inversion of geoelectromagnetic data Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 108 (4). pp. 233-253. ISSN 0253-4126

Singh, Arvind K. ; Kumar, Adarsh ; Rai, J. ; Sri Niwas, (1999) Variation in atmospheric aerosols and electrical conductivity at Roorkee during the total solar eclipse of October 1995 Indian Journal of Radio and Space Physics, 28 (1). pp. 1-10. ISSN 0367-8393

Rastogi, Anupma ; Gupta, P. K. ; Sri Niwas, (1998) Inversion of GDS data of Northwest Himalaya using EM2INV Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 107 (2). pp. 149-154. ISSN 0253-4126

Gupta, P. K. ; Niwas, Sri ; Gaur, V. K. (1996) Straightforward inversion scheme (SIS) for one-dimensional magnetotelluric data Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 105 (4). pp. 413-429. ISSN 0253-4126

Verma, S. K. ; Sri Niwas, (1994) Comparison of the deep resistivity, MT and deep transient EM methods in delineation of conducting sediments below high velocity lava flows Journal of Associate Exploration Geophysicists, 15 . pp. 30-33. ISSN 1217-8977

Sri Niwas, ; Kumar, P. ; Wason, H. R. (1992) Fast automatic solution of the inverse resistivity problem Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 91 (1). pp. 29-41. ISSN 0253-4126

Goyal, Vikas C. ; Sri Niwas, ; Gupta, Pravin K. (1991) Theoretical evaluation of modified Wenner array for shallow resistivity exploration Ground Water, 29 (4). pp. 582-586. ISSN 0017-467X

Sri Niwas, (1991) Transformation of line-source resistivity data to point-source data and vice versa using the matrix method Geophysical Prospecting, 39 (1). pp. 95-104. ISSN 0016-8025

Sri Niwas, ; Gupta, P. K. ; Vishwanathan, R. ; Gaur, V. K. (1991) Estimation of depth to the magnetic basement rocks using Backus Gilbert method Journal of Association of Exploration Geophysicists, 12 (1). pp. 1-10. ISSN 0257-1412

Sri Niwas, ; Israil, M. (1989) Matrix method for the transformation of resistivity sounding data of one electrode configuration to that of another configuration Geophysical Prospecting, 37 (2). pp. 209-221. ISSN 0016-8025

Singhal, D. C. ; Sri Niwas, ; Singhal, B. B. S. (1988) Integrated approach for aquifer delineation in hard rock terrains - a case study from Banda District, India Journal of Hydrology, 98 (1-2). pp. 165-183. ISSN 0022-1694

Sri Niwas, ; Israil, M. (1987) A simple method of interpreting dipole resistivity soundings Geophysics, 52 (10). pp. 1412-1417. ISSN 0016-8033

Sri Niwas, ; Israil, M. (1987) A simple method of interpretation of resistivity sounding data using exponential approximation of kernel function Geophysical Prospecting, 35 (5). pp. 548-567. ISSN 0016-8025

Sri Niwas, ; Israil, Mohammad (1986) Computation of apparent resistivities using an exponential approximation of kernel functions Geophysics, 51 (8). pp. 1594-1602. ISSN 0016-8033

Dubey, Om Prakash ; Sri Niwas, ; Awasthi, A. K. (1986) Remote sensing for landscape parameters and scale effect Journal of the Indian Society of Remote Sensing, 14 (1). pp. 39-44. ISSN 0255-660X

Sri Niwas, ; Singhal, D. C. (1985) Aquifer transmissivity of porous media from resistivity data Journal of Hydrology, 82 (1-2). pp. 143-153. ISSN 0022-1694

Sri Niwas, ; Singhal, D. C. (1981) Estimation of aquifer transmissivity from Dar-Zarrouk parameters in porous media Journal of Hydrology, 50 . pp. 393-399. ISSN 0022-1694

Sri Niwas, ; Awasthi, A. K. ; Mantri, S. (1980) Geoelectrical response of a water bearing sandstone shale sequence and estimation of sand shale ratio Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 89 (3). pp. 413-430. ISSN 0253-4126

Sri Niwas, ; Gaur, V. K. ; Katiyar, G. C. (1980) Inversion of micro earthquake arrival time data Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 89 (3). pp. 369-382. ISSN 0253-4126

Gaur, V. K. ; Sri Niwas, ; Garg, N. R. (1980) Electrical resistivity anomalies over hydrocarbon bearing structure Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 89 (2). pp. 239-248. ISSN 0253-4126

Sri Niwas, ; Upadhyay, S. K. (1978) Direct analysis of resistivity kernel function over a two layer Earth with a transitional boundary Proceedings of the National Academy of Sciences, India - Section A, 38 (3 & 4). pp. 103-113. ISSN 0369-8203

Srivastav, J. B. ; Sri Niwas, (1976) Magnetotellurics sounding over models of continuously varying conductivity Proceedings of the National Academy of Sciences, India - Section A, 42 (4). pp. 320-327. ISSN 0369-8203

Sri Niwas, ; Painuly, V. K. ; Srivastav, J. B. (1976) Use of 2x2 matrices in magneto telluric analysis for layered Earth Proceedings of the National Academy of Sciences, India - Section A, 42 . pp. 313-319. ISSN 0369-8203

Sri Niwas, ; Upadhyay, S. K. (1975) Apparent resistivity curves for an infinite line source parallel to an inclined contact Geophysics, 40 (4). pp. 689-693. ISSN 0016-8033

Sri Niwas, (1975) Direct interpretation of geoelectric measurements by the use of linear filter theory Geophysics, 40 (1). p. 121. ISSN 0016-8033

Sri Niwas, ; Upadhyay, S. K. (1974) Theoretical resistivity sounding results over a transition layer model Geophysical Prospecting, 22 (2). pp. 279-296. ISSN 0016-8025

Sri Niwas, ; Upadhyay, S. K. (1972) A note on the depth of inclined bed rock below the power electrode from surface potential measurements Geophysical Prospecting, 20 (4). pp. 910-914. ISSN 0016-8025

Upadhyay, S. K. ; Sri Niwas, (1971) Apparent resistivity over a three layer earth with anisotropic interstratum Pure and Applied Geophysics, 87 (1). pp. 155-160. ISSN 0033-4553

Sriniwas, Avadh Ram (1971) Seismicity of Hindukush and Delhi region Pure and Applied Geophysics, 86 (1). pp. 36-41. ISSN 0033-4553