1. Singh, S., D. Malik, J. Thakur, A. Kaur, R.K. Singh and S. Nijhawan, 2014. A comparative analysis of the physico-chemical properties and heavy metal pollution in three major rivers across India. Int. J. Sci. Res., 3: 1936-1941.
2. Singh, R.K., N.C. Gupta and B.K. Guha, 2014. pH dependence leaching characteristics of selected metals from coal fly ash and its impact on ground water quality. Int. J. Chem. Environ. Eng., 5: 218-222.
3. Singh, R.K., N.C. Gupta and B.K. Guha, 2014. Release of Selected Metals from Class F Fly Ash and Ground Water Contamination. In: Fly Ash Utilization for Sustainable Environment Management: Waste to Resource Material, Mishra, S. and V. Ramachandhran (Eds.). SIES Indian Institute of Environment Management, Navi Mumbai, pp: 22-29.
4. Singh, R.K., N.C. Gupta and B.K. Guha, 2014. Assessment of ground water contamination for heavy metals in the proximity of ash ponds. Elixir Pollut., 75: 28016-28019.
5. Singh, R.K., 2014. Pollution threat to surface and ground water quality due to electroplating units. Int. J. Res. Applied Sci. Eng. Technol., 2: 50-53.
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6. Singh, R.K. and N.C. Gupta, 2014. Value added utilization of fly ash-prospective and sustainable solutions. Int. J. Applied Sci. Eng. Res., 3: 1-16.
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7. Malik, D., S. Singh, J. Thakur, R.K. Singh, A. Kaur and S. Nijhawan, 2014. Heavy metal pollution of the Yamuna river: An introspection. Int. J. Curr. Microbiol. Applied Sci., 3: 856-863.
8. Malik, D., S. Singh, J. Thakur, R.K. Singh, A. Kapoor and S. Nijhawan, 2014. Microbial fuel cell: Harnessing bioenergy from Yamuna water. Int. J. Sci. Res., 3: 44-54.
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9. Malik, D., S. Singh, J. Thakur, R. Kishore, A. Kapoor and S. Nijhawan, 2014. Microbial fuel cell: Harnessing bioenergy from yamuna water. Int. J. Sci. Res., 3: 1076-1081.
10. Malik, D., J. Thakur, S. Singh, R.K. Singh and A. Kapur et al., 2014. Nanocomposite electrode microbial fuel cell: A promising technology for enhanced power generation from Yamuna water. Int. J. Sci. Res., 3: 641-646.
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11. Kundu, J., A. Kaur, D. Malik, R.K. Singh and S. Nijhawan, 2014. Identification of suitable site for possible ground water recharge in south-west district of Delhi. Int. J. Res. Applied Sci. Eng. Technol., 2: 24-29.
12. Kumari, R., A. Kaur, D. Malik, R.K. Singh and S. Nijhawan, 2014. Restoration and management study of water bodies in the west district of NCT-Delhi. Int. J. Curr. Microbiol. Applied Sci., 3: 938-944.
13. Singh, R.K., N.C. Gupta and B.K. Guha, 2012. The leaching characteristics of trace elements in coal fly ash and an ash disposal system of thermal power plants. Energy Sources Part A, 34: 602-608.
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14. Singh, R.K., N.C. Gupta and B.K. Guha, 2012. Pollution Threat to Ground Water Quality due to Leaching of Heavy Metals from Coal Combustion Residues. In: Environment: New Challenges, New Opportunities, Bhattacharya, P. and J.K. Garg (Eds.). Macmillan Scientific Communication, India, ISBN: 9789380780443, pp: 149-157.
15. Singh, R.K., N.C. Gupta and B.K. Guha, 2012. Leaching of trace elements in coal fly ash by shake extraction method. Indian J. Environ. Prot., 32: 864-868.
16. Singh, R.K., N.C. Gupta and B.K. Guha, 2011. A study on leachability of trace elements from coal fly ash in different medium. Indian J. Environ. Prot., 31: 933-939.
17. Singh, R., R.K. Singh, N.C. Gupta and B.K. Guha, 2010. Assessment of heavy metals in fly ash and groundwater-a case study of NTPC Badarpur thermal power plant, Delhi, India. Pollut. Res., 29: 685-689.
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