1. Pandey, J. and N. Verma, 2017. First report of Mungbean yellow mosaic India virus infecting pumpkin in India. New Dis. Rep., 36: 23-23.
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2. Singh, D., M. Pathania, R. Ram, A.A. Zaidi and N. Verma, 2010. Screening of chrysanthemum cultivars for chrysanthemum stunt viroid in an Indian scenario. Arch. Phytopathol. Plant Prot., 43: 1517-1523.
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3. Verma, N., K. Kumar, S. Kulshrestha, G. Raikhy and V. Hallan et al., 2009. Molecular studies on Tomato aspermy virus isolates infecting chrysanthemums. Arch. Phytopathology Plant Prot., 42: 99-111.
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4. Ram, R., N. Verma, A.K. Singh and A.A. Zaidi, 2009. Virus-free chrysanthemums: Production and quality management. Arch. Phytopathol. Plant Prot., 42: 940-949.
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5. Pathania, M., D. Singh and N. Verma, 2009. Role of Intellectual Property Rights in Biotechnology. In: Text Book on Molecular Biotechnology. Chauhan, A.K. and A. Varma (Ed.). I.K. International, India., ISBN: 9789380026374, pp: 1293-1321..
6. Verma, N. and A.A. Zaidi, 2008. Pelargonium: Viral Diseases and Management. In: Characterization, Diagnosis and Management of Plant Viruses. Rao, G.P., C. Bragard and B.S.M. Lebas (Ed.). Studium Press, USA., ISBN: 1933699345, pp: 245-260..
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7. Verma, N. and A. Varma, 2008. Diagnostics and Management of Orchid Viruses. In: Characterization, Diagnosis and Management of Plant Viruses. Rao, G.P., C. Bragard and B.S.M. Lebas (Ed.). Studium Press, USA., ISBN: 1933699345, pp: 269-285..
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8. Singh, D., N. Verma and A. Varma, 2008. The Fungal Transmitted Viruses. In: Mycorrhiza. Varma, A. (Ed.). Springer Berlin Heidelberg, Germany., ISBN: 978-3-540-78824-9, pp: 485-503..
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9. Verma, N., A. Mehra, L. Singh, V. Hallan and A.K. Singh et al., 2007. Screening for viruses infecting chrysanthemum cultivars in India. Sci. Hortic., 111: 260-265.
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10. Prasad, R., R. Malla, H. Kharkwal, K. Bhatnagar and A. Das et al., 2007. Beneficial Microorganisms: Herbal and Medicinal Plants. In: Microbes for Human Life, Chauhan, A.K., H. Kharkwal and A. Varma (Ed.). IK International, India., ISBN: 8189866052, pp: 49-72..
11. Kharkwal, H., A.C. Kharkwal, N. Verma, R. Prasad, A. Das, K. Bhatnagar and A. Varma, 2007. Medicinal Plants for Human Life. In: Microbes for Human Life, Chauhan, A.K., H. Kharkwal and A. Varma (Ed.). IK International, India., ISBN: 8189866052, pp: 19-31..
12. Das, A., K. Bhatnagar, R. Prasad, A. Paul and T. Kumar et al., 2007. Fermented Health Foods: Boon to Mankind. In: Microbes for Human Life. Chauhan, A.K., H. Kharkwal and A. Varma (Ed.). IK International, India., ISBN: 8189866052, pp: 113-148..
13. Verma, N., K. Kumar, S. Kulshrestha, G. Raikhy and V. Hallan et al., 2006. Detection and molecular characterization of a Tomato aspermy virus isolate infecting chrysanthemums in India. Acta Hort. (ISHS), 722: 41-54.
14. Verma, N., B.K. Mahalingam, R. Ram and A.A. Zaidi, 2006. Coat protein sequence shows that Cucumber mosaic virus isolate from geraniums (Pelargonium spp.) belongs to subgroup II. J. Bios., 31: 47-54.
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15. Adekunle, O.K., S. Kulshrestha, R. Prasad, V. Hallan and G. Raikhy et al., 2006. Plant parasitic and vector nematodes associated with Asiatic and Oriental hybrid lilies. Bioresour. Technol., 97: 364-371.
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16. Verma, N., R. Ram and A.A. Zaidi, 2005. In vitro production of prunus necrotic ringspot virus-free begonias through chemo-and thermotherapy. Sci. Hortic., 103: 239-247.
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17. Verma, N., L. Singh, A.K. Singh, S. Kulshrestha and G. Raikhy et al., 2005. Ornithogalum: A new host of Cucumber mosaic virus (CMV) from India. Plant Pathol., 54: 256-256.
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18. Verma, N., A.K. Singh, L. Singh, G. Raikhy and S. Kulshrestha et al., 2005. Cucumber mosaic virus (CMV) infecting Alstroemeria hybrids in India. Aust. Plant Pathol., 34: 119-120.
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19. Singh, A.K., V. Hallan, N. Verma and A.A. Zaidi, 2005. Natural occurrence of Lily symptomless virus on spider lily. Plant Pathol., 54: 255-255.
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20. Sharma, A., B.K. Mahinghara, A.K. Singh, S. Kulshrestha and G. Raikhy et al., 2005. Identification, detection and frequency of lily viruses in Northern India. Sci. Horticult., 106: 213-227.
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21. Ram, R., N. Verma, A.K. Singh, L. Singh, V. Hallan and A.A. Zaidi, 2005. Indexing and production of virus-free chrysanthemum. Biol. Plant., 49: 149-152.
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22. Kulshrestha, S., V. Hallan, G. Raikhy, O.K. Adekunle, Q.M.R. Haq, N. Verma and A.A. Zaidi, 2005. Reverse transcription polymerase chain reaction (RT-PCR) detection of Arabis mosaic and Strawberry latent ringspot virus in nematodes. Curr. Sci., 89: 1759-1762.
23. Kulshrestha, S., N. Verma, V. Hollan, G. Raikhy, M.K. Singh, R. Ram and A.A. Zaidi, 2005. Detection and identification of Prunus necrotic ringspot virus in Pelargonium. Aust. Plant Pathol., 34: 599-601.
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24. Verma, N., R. Ram, V. Hallan, K. Kumar and A.A. Zaidi, 2004. Production of Cucumber mosaic virus-free chrysanthemums by meristem tip culture. Crop Prot., 23: 469-473.
25. Verma, N., A.K. Singh, L. Singh, S. Kulshreshtha and G. Raikhy et al., 2004. Occurrence of Cucumber mosaic virus in Gerbera jamesonii in India. Plant Dis., 88: 1161-1161.
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26. Raikhy, G., V. Hallan, S. Kulshrestha, M.L. Sharma, N. Verma, R. Ram and A.A. Zaidi, 2004. Detection of Carnation Ringspot and Carnation Vein Mottle Viruses in carnation cultivars in India. Acta Hortic., 722: 247-258.
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27. Verma, N., A. Sharma, R. Ram, V. Hallan, A.A. Zaidi and I.D. Garg, 2003. Detection, identification and incidence of Chrysanthemum B carlavirus in chrysanthemum in India. Crop Prot., 22: 425-429.
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28. Ram, R., A. Joshi, N. Verma, S. Kulshrestha, G. Raikhy, V. Hallan and A.A. Zaidi, 2003. First report of Dasheen mosaic virus infecting four ornamental aroids in India. Plant Pathol., 52: 411-411.
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29. Verma, N., V. Hallan, R. Ram and A.A. Zaidi, 2002. Detection of Prunus necrotic ringspot virus in begonia by RT-PCR. Plant Pathol., 51: 800-800.
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30. Zaidi, A.A., N. Verma and V. Hallan, 2001. Orchid viruses: Detection and management. J. Orchid Soc., 15: 77-84.
31. Tiyagi, S.A., N. Verma and M.M. Alam, 2001. Effect of root-knot nematode, meloidogyne incognita on essential oil contents of rose. Proc. Natl. Acad. Sci. India Sec. B, 71: 67-72.
32. Verma, N., D. Mansoor, D. Singh and Q.A. Naqvi, 1999. Studies on Bean yellow mosaic virus infecting broad bean (Vicia faba L.) in Aligarh, India. Annals Plant Protect. Sci., 7: 51-54.
33. Tiyagi, S.A., N. Verma and M.M. Alam, 1999. Susceptibility of some accessions of lentil against Rhizoctonia solani. Indian J. Plant Pathol., 17: 48-49.
34. Tiyagi, S.A., N. Verma and M.M. Alam, 1999. Susceptibility of some accessions of lentil against Macrophomina phaseolina. Indian J. Plant Pathol., 17: 114-115.
35. Tiyagi, S.A., N. Verma and M.M. Alam, 1999. Inoculum potential of spiral nematode, Helicotylenchus indicus in relation to plant growth of chickpea. Annals Plant Protect. Sci., 7: 231-233.
36. Singh, D., N. Verma and Q.A. Naqvi, 1999. Oxalis leaf curl-a new report from Aligarh, India. Virus Dis. (Indian J. Virol.), 15: 119-120.
37. Singh, D., N. Verma and Q.A. Naqvi, 1998. Control of yellow vein mosaic of okra by seed selection and insecticidal application. Virus Dis. (Indian J. Virol.), 14: 121-123.