ਗੁਰੂ ਅੰਗਦ ਦੇਵ ਵੈਟਨਰੀ ਐਂਡ ਐਨੀਮਲ ਸਾਇੰਸਜ਼ ਯੂਨੀਵਰਸਿਟੀ
Guru Angad Dev Veterinary And Animal Sciences University

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- Centre of One Health - Director of Clinics - Director of Livestock Farms

College of Veterinary Science

Faculty Detail

Dr. Vishal Mahajan

Designation: Principal Scientist (Veterinary Pathology)
Contact Address:Department of Animal Disease Research Centre, College of Veterinary Science, Guru Angad Dev Veterinary & Animal Sciences University, Ludhiana, Punjab 141004
Telephone : 91-9417193177(R)
Mobile: 8360105147,

Academic Credentials

  • B.V.Sc. & A.H.
  • M.V.Sc. (Veterinary Pathology) 
  • Ph.D (Veterinary Pathology) 

Teaching and Other Appointments

  • Research, Teaching, Extension
  • Investigation of animal disease outbreak in Punjab, laboratory analysis of samples from outbreaks for confirmatory diagnosis. Sero-surviellance of infectious diseases.

Other Appointments

  • Veterinary Pathology

Area of Research Interests

  • Diagnosis of infectious diseases of Cattle, sheep, goat and pig
  • Diagnosis of infectious agents causing abortion in bovine and swine

Ongoing Projects



Title of the project

Funding Agency




Rapid and confirmatory detection of important animal meat based food borne pathogens and its associated toxicants and natural toxicants by using immuno-pathological and molecular techniques- A step towards One Health Concept (Co-PI)

SERB, Ministry of food processing, New Delhi

2016-2019 (Jan)




Towards climate resilient milk production system in Punjab

Objective: Disease forecasting for efficient controlling disease in a changing climate scenario





Studies on Patho-morphological Alterations in Blood Cells to develop a Foldscope based field test (Co-PI)





All India Co-coordinating research Project (AICRP) on Animal Disease Monitoring & Surveillance (ADMAS)

(Associated Scientist)

National Institute of Veterinary Epidemiology & Disease Informatics (NIVEDI) , ICAR

Network Project



All India Coordinated Research project on pigs. (Co-PI)



Research Honour’s /Awards

  • Best poster presentation (Co-author) award for paper “evaluation of diagnostic tests for Brucella abortus, B. melitensis and B. ovis in ovine and caprine abortions by  Sultana 
  • R, Sharma S, Mahajan V, Filia G, Bansal BK and Randhawa CS. Presented in the XXXIV Annual Convention of Indian Society for Veterinary Medicine (ISVM) and 
  • National Symposium on Newer approaches in diagnosis and management of animal diseases for sustainable health and production cum workshop organized by Department of Veterinary Medicine, GADVASU, Ludhiana from 17-19 Feb, 2016.
  • Best Oral presentation (co-author) award for paper Diagnosis and Management of Anaplasmosis outbreaks in cattle in Punjab” by Bal MS, Mahajan V, Filia G, Singh CK and Kaur P. Presented in the VII conference of Indian Meat Science association organized by Department of Livestock Products Technology, GADVASU, Ludhiana from 10-12 November, 2016.
  • Best paper Award (Dr. BS Rajya non oncology short communication) award entitled Histopathological and immunohistochemical approaches for the diagnosis of mycoplasmosis in pig population of Punjab (co-author) by Indian Association of Veterinary Pathologist, 2017. 
  • First poster presentation award (co-author) for the paper on images of parasites/ developing parasitic stages captured by foldscope attached with smartphone in workshop on use of foldscope as novel approach for disease diagnosis organized by Department of Veterinary Pathology, GADVASU, Ludhiana on 26th March, 2019. 
  • Third  Prize for poster presentation((co-author) in the session Advances in Diagnostics and Therapeutics in Livestock Diseases (DTL) during the XVIth National Online Conference of IAWV-2020 on “Sustainable contribution of ATMANIRBHAR Women Veterinarians in Enrichment of Production Potential in Livestock through Applications of Modern Technologies” organized by College of Veterinary and Animal Sciences, Parbhani (MS) India, from 9 th -10th December, 2020
  • Member of Editorial Board of Journal- Aperito journal of Bacteriology, Virology and Parasitology (International).
  • Review Board member for AS Veterinary Sciences Journal
  • Member of reviewer panel of ARCC Journal

No. of Publications

Research: 20
Extension: 20       
Books: 02        
Manuals: 05


  • Mahajan V, Banga HS and Filia G. (2020). Patho-epidemiological and risk factor studies for detection of neospora associated abortion in cattle and buffaloes in Punjab, India.Revue Scientifiqueet Technique (International Office of Epizootics 38(3): 801-808.
  • Mahajan V, Bal M S, Filia G, Leishangthem  G D and Sandhu K S. (2020). Diagnosis of encephalitic listerial outbreak in sheep-Immuno-histopathological study. International Journal of Current Microbiology and Applied Sciences. 9(6): 3235-3238
  • Gupta D K and Mahajan V. (2020). Outbreak of Bovine Ephemeral Fever (BEF) in an organized dairy farm of Punjab.Indian J. Vet. Med. 74:685-686.
  • Kaur A, Mahajan V, Singh ND, Filia G, Banga HS, Leishangthem GD and Singh A. (2019). Patho-epidemiological and molecular diagnosis of swine brucellosis in Punjab. Indian Journal of Animal Research.    DOI: 10.18805/ijar.B-3728.
  • Kaur A,  Mahajan V,  Leishangthem G D, Singh ND,  Banga H S. Filia G.(2019). Seroprevalence study for detection of Porcine Reproductive and Respiratory Syndrome Virus antibodies in pig population of Punjab.Haryana Veterinarian 58(1): 122-23.
  • Kaur A, Mahajan, V, Leishangthem GD, Singh ND PayalBhat, Banga HS and  Filia G (2019).Serological and pathological studies on Porcine Circovirus 2 infection in Punjab. Indian Journal of Veterinary Pathology 42(4): 281-86
  • Mahajan V, Banga HS, Filia G and Gupta K. (2018). Detection of leptospirosis and listeriosis in bovine abortion: an immuno-histochemical study.  Indian Journal of Animal Health. 57(2): 165-168.
  • Leishangthem GD, Mahajan V, Filia G and Bal MS. (2018). Detection of Brucellaabortus in Cattle and Buffaloes with Spontaneous Abortion from an Organized Dairy Farm. International Journal of Livestock Research.9 (3): 164-171.
  • Mahajan V, Banga HS, Filia G, Gupta MP and Gupta K.(2017).Comparison of diagnostic tests for the detection of bovine brucellosis in the natural cases of abortion.Iranian Journal of Veterinary Research. 18(3): 183-189
  • Mahajan V, Filia G, Bal MS, Kaur G, Sharma S, Dantotia A and SinghCK. (2017). Outbreaks of Peste Des Petits Ruminants (PPR) in Goats in Punjab, India. International Journal of current Microbiology and applied Sciences. 6(8): 3705-3710
  • Mahajan V, Banga HS and Gupta A. (2017) Immunohistochemical and molecular approaches for the diagnosis of Trichomonas fetus in natural cases of bovine abortion.Indian Journal of Veterinary Pathology. 41(2) : 116-118
  • Bal MS, Mahajan V, Filia G, Singh CK, Kaur P and Sharma S.(2017).Outbreaks of Anaplasmosis in Dairy Cattle in Punjab, India.Journal of Animal Research.7(5) : 885-889.
  • Mahajan V, Banga HS, Deka D, Filia G and Gupta A( 2013) Comparison of diagnostic tests for diagnosis of infectious bovine Rhinotrcheitis in natural cases of bovine abortion. Journal of Comparative Pathology. 149