He is having rich experience in the field of Virology and Biotechnology. His major research achievements include contributions in viral disease epidemiology, virus-host interactions, microbial biodiversity, characterization and diagnosis of animal pathogens. He has worked on rotavirus, astrovirus, picobirnavirus, picornaviruses, coronaviruses, and many other zoonotic viruses.

Prof Malik is recipient of several prestigious awards/honours including Jawaharlal Nehru Award (2001). Dr Malik has honour to receive Fellowship of National Academy of Dairy Sciences (India), Associate Fellowships of National Academy of Agricultural Sciences (2010) and National Academy of Veterinary Sciences (2010). Prof Malik has been endowed with Fellowships from several national professional academies and societies including Academy of Microbiological Sciences, National Academy of Biological Sciences, Indian Virology Society, Indian Association of Veterinary Microbiologists, Immunologists and Specialists in Infectious Diseases, Indian Society of Veterinary Immunologists and Biotechnologists, Society for Immunology and Immunopathology, Biotechnology Research Society India, and many others.

Prof Malik is the member of Committee for the Purpose of Control and Supervision of Experiments on Animals (CPCSEA), a statutory Committee of Department of Animal Husbandry and Dairying (DAHD), Ministry of Fisheries, Animal Husbandry and Dairying for three years (2021-2023). At international arena, he is a member of International Committee on Taxonomy of Viruses (ICTV) on Birnaviridae and Picobirnaviridae study group, an executive council member of World Society for Virology (USA), a member of One-Health Group of Federation of Asian Veterinary Association (FAVA) (2021-2025), and a member of Pharmaceutical Stewardship Group of World Veterinary Association (WVA).

He has developed several technologies and diagnostic kits and has two National patents to his credit. He has authored 8 books of reputed publishers including ICAR, Elsevier, and Springer Nature, and has contributed over 60 book chapters. His h index is 48 with citations of more than 9400 and RG score 41. Prof Malik has supervised 7 Ph.D. and 20 Master’s degree students for their thesis research.

Prof Malik is Chief Editor in Journal of Immunology and Immunopathology and Bhartiya Krishi Anusandhan Patrika, the UGC/NAAS rated journals. At international platform, serving as Associate Editor in Frontiers in Microbiology and Frontiers in Veterinary Sciences, the high impact international journals. Prof Malik is on advisory board of several professional academic societies including Indian Virological Society where he is serving as “Secretary General”, “Secretary” in World Society for Virology, “Joint Secretary” in the Indian Society of Veterinary Immunology and Biotechnology and served as Joint Secretary in the Indian Association of Veterinary Microbiologists, Immunologists and Specialists of Infectious Diseases.