Although immunological and molecular techniques are being increasingly utilized for the diagnosis of parasitic diseases, conventional faecal and blood smear examinations remain the primary method employed by veterinary practitioners worldwide, based on the principle of "seeing is believing." Despite the advancements in technology, these techniques continue to be the gold standard and cost-effective means of diagnosing parasitic infections in domestic animals.

Professor  Prayag  Dutt  Juyal: born  on  January  5th  1955  at  Pauri  Garhwal, Uttarakhand, did his BVSC & AH, MVSC (1979) from G.B. Pant University of Agricultural  and Technology, Pantnagar  and  Ph.D  (1987)  from  CCS, HAU, Hisar.

He  served  as  Assistant  Professor,  Associate  Professor  and  Professor  in Veterinary  Parasitology  at  R.A.U,  Pusa  (Bihar),  G.B.  Pant  University  of Agriculture and Technology, Pantnagar (Uttarakhand) and PAU/GADVASU, Ludhiana (Punjab). He was elevated to the position of Registrar, GADVASU, Ludhiana. He served GADVASU with retirement in 2015. Later in 2016, he become vice-chancellor of Nanaji Deshmukh Veterinary Science University, Jabalpur  (Madhya  Pradesh).  He  has  more  than  200  publications  including research, popular and technical papers in national and international Journal of repute.  He  has  published  3  books  and  5  practical  manuals  for  PG  and  UG students respectively.

He is life member and fellow of many national level scientific societies. He was former  vice-president  and  ex-general  Secretary  of  Indian Association  for Advancement of Veterinary Parasitology. He is recipient of Dr. BV Rao Gold Medal and Dr. Alwar memorial award for best research paper published. He is editorial board member of Journal of Animal Science Research and Journal of Laboratory Physicians AIIMS, New Delhi. He visited Thailand, U.K. Japan and China for presentation of his research findings. He was foliated with Biored Honorary Fellowship, Krishi Bhushan Award and Samgra life time achievement award.

Giridhari Das: born on November 155th, 1973 at Patrasayer, Bankura (West Bengal),  did  his  B.V.Sc  & A.H.  from  W.B.U.A.F.S.  (Kolkata),  and  M.V.Sc and Ph.D (Veterinary Parasitology) form IVRI, Izatnagar, Bareilly. He has pub- lished more than 100 research and extension articles in reputed national and Internationals journals, five practical manuals for undergraduates students and nine practical manuals for postgraduate students. He is life member of many national scientific societies. He is recipient of Dr. V.S. Alwar Memorial Award for best research article published. Presently, he is serving as Director of In- struction and Controller of Examination and Professor and Head, Department of veterinary Parasitology, Nanaji Deshmukh Veterinary Science University, Jabalpur.

1. Collection, Preservation and Dispatch of Faecal Samples, 2. Techniques for Detection of Parasite Eggs/Oocysts in Faeces, 3. Identification of Parasitic Mites: Collection and Examination of Skin Scrapings, 4. Examination of Blood, Lymph Node Biopsy and Other Body Fluids, 5. Collection and Preservation of Parasites, 6. Immuno-molecular Techniques for Diagnosis of Parasitic Infections,7. Chemotherapy Against Parasites, 8. Methods of Detection of Antiparasitic Drug Resistance, Appendix