Prof. B. Roy

Zoology Department

Designation: Professor


M.Sc. (University of North Bengal), Ph. D. (North-Eastern Hill University)

Area of Interest/Specialization:

Parasitology & Toxicology


Prof. Bishnupada Roy has more than 34 years of research experience in the field of parasitology involving taxonomy and chemotherapy of helminth parasites. He has contributed extensively in the field of molecular diagnosis by developing species specific primers and DNA barcodes for several helminth parasites. He also established anthelmintic potential of several medicinal plants consumed by different tribes in North-East India to cure helminth infections. At present his group is trying to unveil the mechanism of action of the isolated active compounds of these plants and also to evaluate their toxic effect, if any, on the consumers in Northeast India.


  • Senior Research Fellow, Council of Scientific & Industrial Research, New Delhi (1989-1990)
  • Research Associate, Council of Scientific & Industrial Research, New Delhi (1992-1993).

PhD Awarded/Supervised:

  1. Dr. K. Lalchhandama (2008)
  2. Dr. Shyamashree Dasgupta (2010)
  3. Dr. Markiyoo Challam (2011)
  4. Dr. Sudeep Ghatani (2012)
  5. Dr. Ananta Swargiary (2014) 
  6. Dr. Bikash Ranjan Giri (2015)
  7. Dr. Bhabesh Ronghang (2017)
  8. Dr. Damanbha Lyngdoh (2018)
  9. Dr. Sunil Sharma (2018)
  10. Dr. Ruma Koiri (2018)
  11. Dr. Philayung ZAS (2019)

Administrative responsibilities:

  • Member, Academic Council, NEHU
  • Member, School Board of Life Sciences, NEHU
  • Member, Board of Studies in Zoology, NEHU
  • Member, Board of Studies in Biotechnology, NEHU   

Academic affiliations: North-Eastern Hill University

Papers presented  in Conferences/Seminars:

Presented more than 20 research papers in National and International Conferences


  • Prof. S. P. Sinhababu, Department of Zoology, Visva-Bharati University, W. Bengal  
  • Prof. P. K.  Kar, Department of Zoology, Cooch Behar Panchanan Barma University, W. Bengal
  • Prof. Ghanashyam Bez, Department of Chemistry, NEHU

Any other:

  • Elected as Fellow of the Royal Microscopical Society, Oxford (1991)
  • Life Member, National Academy of Sciences, Allahabad, India
  • Life Member, Indian Science Congress Association, Kolkata
  • Life Member, Indian Society of Parasitology, Lucknow
  • Life Member, Electron Microscope Society of India
  • Life member, Zoological Society, Kolkata

Research Projects

  1. Studies on the pharmacological properties of Lysimachia ramosa and its active component(s).  UGC, New   Delhi
  2. Cyto-toxic potential of α-viniferin, a natural polyphenolic compound, in  Swiss albino mice. DST, New  Delhi
  3. Molecular characterization of zoonoses of worm origin prevailing in  Northeast India. ICMR, New Delhi
  4. Status of Amphistomiasis & Molecular Taxonomy of Amphistome Parasites (Platyhelminthes: Trematoda) in   Mammalian Livestock in Northeast India. DBT, New Delhi
  5. Anthelmintic activity of some traditional medicinal plants in Mizoram, GBPIHED, Almora
  6. On the efficacy and mode of action of some traditional medicinal plants against helminth  parasite, UGC, New Delhi



1. Tandon, V., Yadav, A. K. & Roy B. (2009) : “CURRENT TRENDS IN PARASITOLOGY” Proceedings of the 20th National Congress of Parasitology, Shillong, India (November 3-5, 2008) Panima Publishing Corporation, New Delhi.

2. Tandon, V. & Roy B. (2002) : “SEM  PICTORIAL GUIDE  TO  TREMATODES  OF LIVE  STOCK  IN INDIA” Regency Publication, New Delhi,

Chapter  in Books

3.   Roy, B. & Giri, B. R. (2016):      CAREX BACCANS NEES, AN ANTHELMINTIC MEDICINAL PLANT IN NORTHEAST INDIA"  In   "Medicinal Plants and Its Therapeutic Uses" Birla K. Singh (Ed.), OMICS Group  eBook, CA, USA, 1-22.

4.  Tandon, V., Roy, B., Shylla, J. A. & Ghatani, S. (2014): “AMPHISTOMES” in “Digenetic  Trematodes (Advances  in Experimental Medicine and Biology)” Rafael T and Fried, B (Eds.),          Springer Science+Business Media,  N. York, DOI 10.1007/978-1-4939- 0915-5-11.

5. Tandon,V., Roy, B. & Ghatani, S. (2013): “TREMATODE INFECTIONS OF THE GASTROINTESTINAL SYSTEM” In “Infections of the Gastrointestinal  System”. Vaishnavi (Ed.),  Jaypee Brothers Medical Publishers, New Delhi,  426-449.

6.   Tandon, V., Roy B. & Prasad, P.K. (2012):   “FASCIOLOPSIS ” in “Molecular Detection of Human    Parasitic Pathogens”. D. Liu (Ed.), CRC Press, Florida, USA, 351-362.

7.   Tandon, V., Yadav, A.K., Roy, B. & Das, B. (2011): “PHYTOCHEMICALS AS CURE OF WORM INFECTIONS IN TRADITIONAL MEDICINE SYSTEMS” in “Emerging  Trends in Zoology”  Srivastava & Kumar (Eds.), Narendra  Publishers, New Delhi,  1-27.     

8.  Roy, B. & Tandon, V. (2003):   “FASCIOLOPSIS  BUSKI” in “International Hand Book of Foodborne  Pathogens”. M.D. Miliotis and J. W. Bier (Eds.), Marcel Decker, Inc. Washington, 563-570.

9.   Roy, B. (2000):    “STRAIN  VARIATION IN HELMINTH  PARASITES  & PAGE” in  “Identification   and   Diagnosis  of   Parasites   of   Biomedical Importance”. A. K. Yadav (Ed.),   83-86. 

List of research publications

10. Zimik, P., Sharma, S. & Roy, B. (2019). Characterization of Clinostomum metacercariae using microwscopic and molecular approaches. Anals of Parasitology. 65(1): 87-97.

11.  Dev, D. & Roy, B. (2019). Wound-healing potential of roots of  Hygrophila auriculata Schumach. in Swiss albino mice. Applied Clinical Pharmacology and Toxicology. DOI: 10.29011/ACPT-117.100017.

12.  Ronghang B., Zimik, P. & Roy, B. (2018). Stereoscan and molecular characterization of rumen flukes of Mithun (Bos frontalis, Lambart 1804) from Arunachal Peadesh, India. NBU Journal of Animal Science.  12: 1-10.

13. Dey, P. & Roy, B. (2018). Biochemical and ultrastructural changes in Raillietina echinobothrida in vitro exposed to extract of Lysimachia ramosa. Journal of Parasitic Disease. 42(2): 212-219.

14.  Roy, B & Pathaw, D. (2018). Cytotoxic effects of the phytochemical (+)-α-viniferin in Swiss albino mice. British Journal of Pharmaceutical and Medical Research. 3(5): 1340-1351.

15.  Bharti R. R. & Roy, B. (2017). In vivo acute toxicity of a traditionally used medicinal plant Millettia pachycarpa Benth. in Swiss albino mice. NBU Journal of Animal Science. 11: 15-20.

16.  Roy, B & Pathaw, D. (2017). Flowcytometric analysis of cell cycle in the liver of mice in vivo exposed to (+)-α-viniferin, a phytostilbene. Journal of Clinical and Experimental Pharmacology. DOI: 10.4172/2161-1459.1000243.

17.  Philayung Z.A.S. & Roy B. (2017). Scanning electron microscopy of nematode parasites infecting climbing perch with redescription of Paraquimperia manipurensis. Imperial Journal of Interdisciplinary Research. 3(6): 994-1002.

18. Koiri,  R.  & Roy, B. (2017). The occurrence of a new piscine tape worm Senga Dollfus, 1934 (Pseudophyllidea: Bothriocephalidae) in Monopterus cuchia (F. Hamilton, 1822) from Tripura. Imperial Journal of Interdisciplinary Research. 3(2): 864-870. 

19. Koiri,  R.  & Roy, B. (2017).  Redescription and new locality record of some helminth parasites   of Clarias batrachus in Tripura, India.  International Journal of Research in BioSciences. 6(1):26-41.

20. Koiri, R. & Roy, B. (2017). Spectrum of helminth parasites infecting some edible fishes of Tripura. Imperial Journal of Interdisciplinary Research. 3(1): 974-978.

21. Koiri,  R.  & Roy, B. (2016).  The seasonal incidence of parasitic helminth infection among the  walking catfish, Clarias batrachus of Tripura, India. Annals of Parasitology. 62(4): 307-314.

22. Roy, B. & Dey, P. (2016). Cytotoxic effects of Lysimachia ramosa Wall. Ex Duby (Primulaceae) inSwiss albino mice. Journal of Pharmacognosy & Natural ProductsDOI: 10.4172/2472-0992.1000126.

23. Lyngdoh, D. Sharma, S., Roy, B. & Tandon, V. (2016). Animal Fascioliasis: Perspectives from highaltitudinal regions. Veterinary Parasitology.  232: 21-31. 

24. Sharma, S. Lyngdoh, D., Roy, B. & Tandon, V. (2016). Molecular Phylogeny of Cyclophyllidea (Cestoda:Eucestoda): An in-silico analysis based on mtCOI gene. Parasitology Research. DOI 10.1007/s00436-016-5092-4.  

25. Sharma, S. Lyngdoh, D., Roy, B. & Tandon, V. (2016). Differential diagnosis and molecular characterization of Hymenolepis nana and Hymenolepis diminuta (Cestoda: Cyclophyllidea: Hymenolepididae) based on nuclear rDNA ITS2 gene marker. Parasitology Research DOI 10.1007/s00436-016-5210-3.

26. Ronghang B. & Roy, B. (2016). Status of Tick infections among semi-wild cattle in Arunachal Pradesh, India. Annals of Parasitology. 62(2): 131-138.

27. Giri, B. R. & Roy, B. (2016). Praziquantel induced oxidative stress and apoptosis-like cell death in Raillietina echinobothrida. Acta Tropica. 159: 50-57.

28. Giri, B. R. & Roy, B. (2016). Cysticercus fasciolaris infection induced oxidative stress and apoptosis in rat liver: a strategy for host parasite cross talk. Parasitology Research. DOI: 10.1007/s00436-016-5008-3     

29. Roy, B. & Giri, B. R. (2016). Fumarate reductase inhibitory potential of phytostilbenes, resveratrol and α-viniferin. International Journal of Pharma and Bio Sciences. 7(2): 134-137.

30. Roy, B & Giri, B. R. (2016). α-Viniferin and resveratrol induced alteration in the activities of someenergy metabolism related enzymes in the cestode parasite Raillietina echinobothrida, Acta Tropica. 154: 102-106.  

31. Sahu, R., Biswal, D. K., Roy, B. & Tandon, V. (2015). Molecular characterization of Opisthorchis noverca (Digenea : Opisthorchiidae) based on nuclear ribosomal ITS2 and mitochondrial COI genes. Journal of Helminthology. DOI:

32. Swargiary A. & Roy, B. (2015). In vitro anthelmintic efficacy of Alpinia nigra and its bioactive compound, astragalin against Fasciolopsis buski. International Journal of Pharmacy and Pharmaceutical Sciences. 7(10): 30-35.

33. Giri, B. R. & Roy, B. (2015). Resveratrol and α-viniferin induced alterations of acetylcholinesterase and nitric oxide synthase in Raillietina echinobothrida.Parasitology Research. 114(10): 3775-3781.     

34. Giri, B. R. & Roy, B. (2015). Apoptosis like cell death in Raillietina echinobothrida induced byresveratrol. Research in Veterinary Science. 101: 120-125.      

35. Swargiary A. & Roy, B. (2015). Phytochemical screening and antioxidant property of shoot extracts of Alpinia nigra (Gaertn.) Burtt (Family – Zingiberaceae). Medicinal Plants. 7(1): 48-50.

36. Roy, B. and Giri, B.R. 2015. α-Viniferin induced structural and functional alterations in Raillietina echinobothrida, a poultry tapeworm. Microscopy and Microanalysis.  21:  377-384. 


38. Ronghang, B. and Roy, B. (2014) Scanning electron microscopic observations on sensilla of Ixodes   acutitarsus recovered from semi-wild cattle Bos frontalis Lambert. Entomology and Applied Science Letters. 1(4):8-15.

39. Ronghang, B. & Roy, B. (2014). Stereoscan Observations on Sensilla of Rhipicephalus anguineus Recovered from Semi-Wild Cattle Bos frontalis Lambert. Journal of Advance Microscopy Research. 9: 136-140.

40. Chetia, M., Giri, B. R., Swargiary, B., Ronghang, B. & Roy, B. (2014). Amomum maximum Roxb (Zingiberaceae), a Medcinal Plant of Tripura, India: A natural Anthelmintic?. Journal of Advance Microscopy Research. 9: 148-153.

41. Ghatani, S. Shylla, J. A., Roy, B. & Tandon, V. (2014). Multilocus sequence evaluation for differentiating species of the trematode Family Gastrothylacidae, with a note on the utility of mitochondrial COI motifs in species identification. Gene. 548: 277-248.

42. Ronghang, B. & Roy, B. (2014). Occurrence of Rhipicephalus sanguineus and Ixodes acutitarsus (Acari: Ixodidae) among semi-wild cattle Bos frontalis in Northeast India. Entomology and Applied Science Letters. 1(3): 23-26.

43. Giri, B. R. & Roy, B. (2014). Resveratrol induced structural and biochemical alterations in the tegumentof Raillietina echinobothrida.Parasitology International. 63: 432-437.

44. Ronghang, B. & Roy, B. (2013). Filarial infections in semi-wild cattle of Northeast India: first record of Seteria digitata (von Linstov 1906) in Bos frontalis (Lambert 1804). Journal of Parasitic Diseases. DOI 10.1007/s12639-013-0404-4.

45. Roy, B. & Giri, B. K. (2013). Anti-acetylcholinesterase activity of root hair of Carex baccans on the trematode Artyfechinostomum sufrartyfex. NBU Journal of Animal Sciences. 7: 1-5.

46. Giri, B. R. & Roy, B. (2013). Nephrotoxic potential of Carex baccans (Family: Cyperaceae): a light and electron microscopic studies, The Journal of Toxicology and Health. 103: 244-251.

47. Dasgupta, S., Roy, B. & Giri, B. R. (2013). Ultrastructural observations on Raillietina echinobothrida exposed to crude extract and active compound of Sercurinega virosa. Micron.  50: 62-67.

48. Giri, B. R. & Roy B. (2013). Evidnece of apoptosis in Raillietina echinobothrida induced by methanolic extract of three traditional medicinal plants of Northeast India. Experimental Parasitology. 134: 466-473.

49. Swargiary, A., Roy, B. Giri, B. R. &Ronghang, B. (2013). A comparative study on the anthelmintic efficacy of some medicinal plants of North-East India: alteration in the glycolytic enzymesof Fasciolopsis buski, a giant intestinal fluke. Asian Pacific Journal of Tropical Medicine.  412-420.

50. Dasgupta, S., Roy, B., Venkataswamy, M. & Giri, B. R. (2013). Effects of Acacia oxyphylla and Securinega virosa on functional characteristics of Raillietina echinobothrida (Phylum: Platyhelminthes; Class: Cestodea), a poultry cestode parasite. Journal of Parasitic Diseases. 37(1): 125-130.

51. Swargiary, A., Roy, B. & Ronghang, B. (2013). Partial characterization of alkaline phosphatase in Fasciolopsis buski – an intestinal fluke treated with crude extract of Alpinia nigra (Zingiberaceae). Pharmaceutical Technology & Drug Research. doi:10.7243/2050-120X-2-5.

52. Singh, M., Roy, B., Tandon, V. & Chaturvedi, R. (2013). Extracts of differentiated cultures of Spilenthes acmella Murr. Possess antioxidant and anthelmintic properties and hold promise as an alternative source of herbal medicine. Plant Biosystems, 148: 259-267.

53. Roy, B., Giri, B. R., Chetia, M & Swargiary, A. (2012). Microscopy and Microanalysis.

54. Roy, B., Swargiary, A. & Giri, B. R. (2012). Alpinia nigra (Family Zingiberaceae): An AnthelminticMedicinal Plant of North-East India. Advances in Life Sciences. 2(3): 39-51.

55. Challam,M.,Roy,  B.&Tandon, V.(2012).In  vitroanthelminticefficacyofCarex   baccans(Cyperaceae):ultrastructural,histochemicalandbiochemicalalterationsinthe cestode,  Raillietinaechinobothrida. Journal of Parasitic Diseases. 31: 81-86.

56. Roy, B.,Dasgupta, S.,Manivel, V.,Parameswaran, P.S. &Giri, B.R. (2012). Surface topographicalandultrastructural alterations of Raillietina echinobothrida and Ascaridia galli induced by a compoundisolated from Acacia oxyphylla. Veterinary Parasitology. 185: 322-326.

57. Swargiary A. and Roy, B. (2011). Kinetics of Acetylcholinesterase inhibition in Fasciolopsis buski andRaillietina echinobothrida by shoot extract of Alpinia nigra,an indigenous medicinal plants. Plant  Medicine. 3(2): 145-150.

58. Ghatani, S., Shylla J. A., Tandon, V., Chatterjee, A & Roy, B. (2011). Molecular characterization ofpouched amphistome parasites (Trematoda:Gastrothylacedae) using ribosomal ITS2 sequence andsecondary structures. Journal of Helminthology. DOI:10.1017/S0022149X11000125. 1-8.

59. Roy, B., Dasgupta, S. & Giri, B.R. (2012).Electron microscopic observations of tegumental surface of Raillietina echinobothrida treated with root-peel extract of Potentilla fulgens. Microscopy Research and Technique. 75: 1000-1005.

60. Roy, B., Swargiary, A., Syiem, D & Tandon, V. (2010). Potentilla fulgens (Family Rosaceae), a medicinal plant of north-east India: a natural anthelmintic? Journal of Parasitic Diseases. 34(2): 83-88.

61. Dasgupta, S and Roy, B. (2010). Antiparasitic activity of methanolic extract of Acacia oxyphylla (Leguminosae) against Raillietina echinobothrida. Journal of Parasitic Diseases. 34(1): 14-19.

62. Challam,M.,Roy, B.&Tandon, V. (2010).EffectofLysimachia  ramosa (Primulaceae)on helminth parasites: Motility, mortality and scanning electron microscopic observations on surface topography. Veterinary Parasitology. 214: 214-218.

63. Dasgupta, S., Roy, B. & Tandon, V. (2010). Ultrastructural alterations of the tegument of Raillietina echinobothrida treated with the stem bark of Acacia oxyphylla (Leguminosae). Journal of Ethnopharmacology. 172(2): 568-571.

64. Roy, B. and Swargiary, A. (2009). Anthelmintic efficacy of ethanolic shoot extract of Alpinia  nigra on tegumental enzymes of Fasciolopsis buski, a giant intestinal parasite. Journal of Parasitic Diseases33(1&2): 48-53.

65. Roy, B., Dasgupta, S. & Tandon, V. (2009).  Ultrastructural  observations  on  Fasciolopsis buski and  its  alterations  caused  by  shoot  extract  of  Alpinia  nigraMicroscopy  Research   and   Technique. 72(2): 61-66.

66. Lalchhandama, K., Roy, B. & Dutta, B. K. (2009). Anthelmintic activity of Acacia oxyphylla stem bark against Ascaridia galli . Pharmaceutical Biology. 47(7): 578-583.

67. Roy, B., Dasgupta, S.  & Tandon, V. (2008). Ultrastructural  observations  on  tegumental  surface  of  Raillietina  echinobothrida  and  its  alterations  caused  by root-peel extract of Millettia pachycarpaMicroscopy Research and Technique71(11): 810-815.

68. Roy, B., K. Lalchhandama & Dutta, B. K. (2008). Scanning electron microscopic  observations on the  in vitro anthelmintic effects of Millettia pachycarpa on  Raillietina echinobothrida. Pharmacognosy   Magazine. 4: 20-25.

69. Lalchhandama, K., Roy, B. & Dutta, B. K. (2008). Effects of Millettia pachycarpa on the trace metals   and tegumental enzymes of Raillietina   echinobothridaPharmacognosy  Magazine. 4(16):  254-268. 

70. Roy, B.,  K. Lalchhandama  &   Dutta, B. K. (2007):   Anticestodal  efficacy  of  Acacia  oxyphylla  on  Raillietina echinobothrida:  A light and electron microscopic studies. Pharmacologyonline. 1: 279-287.

71. Lalchhandama, K., Roy, B. & Dutta, B. K. (2007). In vitro  anthelmintic  activity of Acacia  oxyphylla:  changes in  the   levels  of trace  elements  and  activities  of  the  tegumental  enzymes of the  cestode,   Raillietina echinobothrida. Pharmacologyonline. 2: 307-317.

72. Tandon, V.  &  Roy, B. (2005).  Status  of  helminthiasis  in  livestock of Northeast India. Proceeding, National Academy of Science India. 75(B): 229-244.

73. Roy, B. & Dey, S. (2004). Scanning electron microscopic detection of  the possible ultrasonic receptor  in Chironomous samoensis.  Journal of Nature Conservation. 16(2): 333-336.

74. Roy, B. (2003).  Anthelmintic  activity  of Artemesia meritima against Artyfechinostomum sufrartyfex,   a zoonotic parasite in North-East India.  Revista di Parasitologia.  20: 143-148.

75. Roy, B. & Dutta, B. K. (2003). In vitro lethal efficacy of leaf extract of Cannabis sativa on the larvae of  Chironomous  samoensisIndian  Journal  of   Experimental   Biology41:  1338-1341.

76. Roy, B., Khathing, D.T., Gupta, S. & Dkhar, P.S. (2003).  Effect  of  paper  mill  wastes on blood of   Channa punctatus.  Journal of Nature Conservation. 15(1) :6-14.

77. Roy, B., Dey, S. & Alfred, J. R. B.(2003). Stereoscan observations on the morphology and distribution pattern of leg sensilla in Chironomous samoensis Edwards : A comparative study of male and female. Journal of Nature Conservation.  15(1) 259-279.

78. Roy, B. & Gupta, S. (2002).  Impact of paper mill waste on  Channa punctatus. Journal of Industrial  Pollution Control. 18(2): 231-235.

79. Roy, B. (2001). Stereoscan  observation  on the surface alteration of  Orthocoelium dinniki  induced  by   extract of Spilenthes oleracea L.  Revista di Parasitologia. 18 : 9-14.

80. Ramanujam, S.N., Roy, B. & Jha, L.K. (2000). Inventory   studies  on  the  earthworm  population  in the Agroforesty system of Mizoram. Proceeding, Internatonal Workshop on Agroforestry and Forest Product. 191-194.

81. Roy, B.   &  Khathing, D. T. (1999).  Quality  of  surface   water  and  its  possible  impact  on  public     health    in Shillong, India.  Health and Hygiene. 20 : 59-64.

82. Imkongwapang, R., Tandon, V. & Roy, B. (1999). Surface fine topography of Diplodiscus sp. (Trematoda : Paramphistomidae) parasitic in anuran frogs.  Journal of Parasitology and Animal Biology.  8(1) : 55-62.

83. Roy, B. & Tandon, V. (1999). Fluckicidal activity of Alpinia nigra (Zingiberaceae) agaist the trematode Fasciolopsis buski.  Biomedical Letter.  60 : 23-29.

84. Roy, B. & Phanwar, I. (1997). Scanning electron microscopic observations on antennae and body  surface of body louse Pediculus humanus humanus L. “Revista di Parasitologica.  14(1) : 159-163.

85. Tandon, V., Pal, P., Roy, B., Rao, H.S.P. & Reddy, K.S. (1997). In vitro anthelmintic activity of root tuber extract of Flemingia vestita, an indigenous plant in Shillong, India. Parasitology Research. 83 : 492-498.

86. Roy, B. & Tandon, V. (1997). In vitro fluckicidal effect of leaf extract of Cannabis sativa Linn. On the trematode Fasciolopsis buski.  Indian Journal of Experimental Biology. 35: 80-82.   

87. Roy, B. (1996). Stereoscan observations on sensilla and other cuticular structures of Ctenocephalus canis (Curtis, 1826).  Revista di Parasitologia. 13(3) : 313-323.

88. Roy, B. & Tandon, V. (1996). Effect  of root  tuber extract of Flemingia vestita, a leguminous plant,   on Artyfechinostomum sufrartyfex and Fasciolopsis buski : a scanning electron microscopy study.  Parasitology Research.  82 : 248-252.

89. Roy, B. &  Tandon, V. (1996). Occurrence of Orthocoelium dinniki Eduardo, 1985 and Orthocoelium parvipapillatum (Stile & Goldberger, 1910) Eduardo, 1985 among Bos indicus and Ovis aries in India. Journal of Bengal Natural History Society. 15(2) : 49-50.  

90. Tandon, V. & Roy, B. (1996). Stereoscan observation on the tegumental surface of Catatropis indicus.  Srivastava, 1935.  Acta parasitologica. 41(3) : 115-119.  

91. Roy, B.& Tandon, V. (1995).Calicophoron  shillongensis sp.(Trematoda,Paramphistomidae), a new parasite from the goat (Capra hircus L.) in India. Acta Parasitologica. 40(4) : 193-197.

92. Tandon, V. & Roy, B. (1994). Analysis of trace elements of some edible trematodes parasitizing the bovine  hosts.  Current Science. 67(6) : 548-549. 

93. Roy, B. & Tandon, V. (1993).  Morphological and microtopographical train variations among Fasciolopsis buski originating from different  geographical areas.  Acta Parasitologica Polonica. 38 (2) : 72-77.  

94. Tandon, V. & Roy, B. (1993). Surface morphological observations on adult Echinostoma revolutum(trematoda) using scanning electron microscopy. Dr. C. B. Srivastava Com. Vol. 63-69.

95. Roy, B., Tandon, V. & Dutta, M. (1992).Prevalence of protozoan infection among frogs in a humid subtropical montane zone. Bioved. 3(1) : 1-2.

96. Roy, B. & Tandon, V. (1992).  Trematodiasis in North-East India : A study on the spectrum of digenetic trematodes among pigs, buffaloes, cattle, goats and sheep.  Indian Journal of Animal Health. 13(1) : 5-14.

97. Roy, B. & Tandon, V. (1992).  Waterborne pathogens in urban areas of Shillong, India. Health and Hygiene.  13 : 165-168.    

98. Roy, B. & Tandon, V. (1992).Seasonal incidence ofamphistomes in cattle in Meghalaya, India. Journal of Veterinary Parasitology. 5(2) : 129-131.

99. Roy, B. & Tandon, V. (1992).  Opisthorchis noverca Braun, 1902 : First record from a bovine host and a comparative stereoscan study on the surface topography of the flukes of swine and cattle origin. Acta Parasitologica Polonica.  37(4) : 179-181.   

100. Roy, B. & Tandon, V. (1992).  Scanning  electron   microscopy of adult  Eurytrema   pancreaticum,  a   parasite of human and bovine hosts.  Indian Journal of Parasitology. 16(1) :135-136.

101. Roy, B. & Tandon, V. (1992).  Seasonal prevalence of some   zoonotic infections in   cattle and pigs in a humid sub-tropical montane zone in India.  Veterinary   Parasitology. 41 : 69-76.

102. Roy, B. & Tandon, V. (1992).  Louse infestation in human population in Shillong, India. Health and Hygiene. 13 : 15-20.

103. Roy, B. & Tandon, V. (1992).  Surface fine topography of four paramphistomid trematodes parasitizing sheep.  Revista di Parasitologia. 9(L3) : 107-117.

104. Roy, B. & Tandon, V. (1992).  Surface fine ultrastructural studies of the blood fluke Schistosoma indicum, a parasite of bovine ruminants.  Revista di Parasitologia.  9(L3) : 119-126.

105. Roy, B. & Tandon, V. (1992).  Biochemical characterization of some digenetic trematodes using protein as  parameters.  Journal of Parasitology and Applied Animal Biology, 1(1) : 21-25. 

106. Roy, B. & Tandon, V. (1991).  Prevalence of   hydatidosis in hilly  mountainous region   of  India :  A  study of domesticated intermediate host in Meghalaya (India).   Proceedings of Seminar on Zoonosis,   Regional Medical Research Centre, Dibrugarh,  83-91.

107. Roy, B.  &  Tandon, V. (1991).     Usefulness   of      Tetramethylsilane     in    the     preparation      of  helminthparasites for scanning electron microscopy.  Revista di Parasitologia. 8(L2): 405-413.

108. Roy, B.  &  Tandon, V.  (1990).   On  a  new  trematode  belonging  to  the   genus    Velasquezotrema   Eduardo  at Javellene, 1987 from Tripura India.  Zoologischer  Anzeiger. 224 : 106-112.

109. Roy, B.  &  Tandon, V.  (1990).  Leiperocotyle meghalayensis   (Paramphistomidae : Orthocoeliinae)  a new species from cattle (Bos indicusLennaeus) in India.  Zoologischer Anzeiger.  225 : 63-70.

110. Dey, S., Basubaul, T. S., Roy, B. & Dey, D. (1989).   A   new   rapid  method  of   air   drying 

111. Roy, B. & Tandon, V. (1989).Metacestodiasis in North-East India : AstudyontheprevalenceofhydatidosisandcysticercosisinMizoram,NagalandandAssam.IndianJournal  of  Animal   Health.28 : 5-10.

112. Roy, B.&Tandon, V. (1989).StereoscanstudiesonthesurfacetopographyofOlveria bosi, parasiticin rumen of cattle. Indian Journal of  Paasitlogy. 13 : 299-301.

113. Roy, B. &Tandon, V. (1989).StatusofBovinefascioliasisinMeghalaya.IndianJournal  of  Helminthology.41 : 136-140.

114. Yadav, A.K..,Tandon, V.&Roy, B. (1989).Prevalenceofnematodeparasitesoflivestock animals in some North-East states of India. Indian Journal of  Helminthology. 141 : 55-60.

115. Roy, B.&Tandon, V. (1989).A surveyofgastrointestinalparamphistomesinbeefcattle ofsomeNorth-East Indian States. Indian Journal of Parasitology. 13 : 303- 306.

116. Yadav, A.K.,Tandon, V.,&Roy, B. (1988). Filarialinfectionin goats of Tripura : OccurrenceofSeteria cervi(Ruldophi, 1819, Balyes, 1936).Indian  Journal   of   Animal  Health.27 : 179- 180.