Dr. Rajkumar Sah Graduated as B.V.Sc & AH in 1999 from one of the oldest veterinary college of India, Bihar Veterinary College, Patna which was affiliated under Rajendra Agricultural University, Pusa, Bihar. He was then awarded Junior research Fellowship by I.C.A.R., New Delhi and completed his M.V.Sc Degree in Animal Genetics & Breeding in 2002 from Gujarat Agricultural University, S.K. Nagar Gujarat. He then worked as Veterinary Office under the department of Animal Husbandry, Govt. of Bihar. He was appointed as a Assistant professor- cum- Junior Scientist in the year 2007 under the department of Animal Genetics and Breeding under under Rajendra Agricultural University, Pusa, Bihar. Thenafer, he has completed his Ph. D Degree in Animal Genetics & Breeding from National Dairy Research Institute, Karnal, Haryana, India in 2017. Thus he is working as a Assistant professor- cum- Junior Scientist since 2007 and performing teaching, research and extention activities.