Dr. A. Sankara narayanan is an Associate Professor and Head in the Department of Life Sciences, Sri Sathya Sai University for Human Excellence, Kalaburagi, Karnataka, India, from June 2021 onwards. His current research focus is on Microbiome studies, fermented food products and Environmental Microbiology. He has published so far 17 books under different international publishers, 60 chapters and 80 research articles in International and National journals of repute, guided 5 PhDs, 16 MPhil, scholars, and operated 5 funded projects in Microbiology. From 2002 to 2015, he worked as an Assistant Professor and Head, Department of Microbiology, K.S.R. College of Arts and Science, Tiruchengode, Tamil Nadu and in August 2015–May 2021 he was associated with Uka Tarsadia University, Surat, Gujarat, India. He has been awarded with the Indian Academy of Sciences (IASc), National Academy of Sciences (NAS), and The National Academy of Sciences (TNAS) sponsored summer research fellowship for young teachers consecutively for 3 years and his name is included as a Mentor in DST-Mentors/Resource persons for summer/ winter camps and other INSPIRE initiatives, Department of Science and Technology, Govt. of India, New Delhi. He is a grant reviewer in the British Society for Antimicrobial Chemotherapy (BSAC), UK. He is an active member in Editorial boards of various National and International Journals. He is Doctoral Committee member, Board of Study member in Microbiology in various colleges and Universities in India, and Reviewer in many International reputed Journals. One among of his edited book received Outstanding Academic Title (OAT) Award from one of the International Publishers in the year 2020. This OAT Award represents the highest calibre of scholarly titles, overall excellence in presentation and importance relative to other literature in the field. His name was included in the World Scientists and University Rankings for the Year 2023; ranking list is released by AD Scientific Index.