Dr. N. Thajuddin is working as an Associate Professor & Head of the Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli, India. He has more than 20 years of teaching and research experience in the field of Microbiology. His work on survey of marine cyanobacteria from India resulted in the establishment of marine cyanobacterial germplasm of 350 strains at National Facility for Marine Cyanobacteria, from which three technologies (blue colourants, β lactamase enzyme and aqua feed) were developed. He had a one-year postdoctoral training on molecular taxonomy and phylogeny of cyanobacteria at Department of Biology, Rensselaer Polytechnic Institute, Troy, New York, USA through the Department of Biotechnology Overseas Fellowship. He has published 120 articles in microbiology and related fields and has received project grants from government agencies such as DBT, MoES, and UGC. He is a life member of various academic bodies and member of editorial boards in several journals. Dr. Thajuddin has successfully guided 17 Ph.D and 22 M.Phil. scholars in diverse field of Microbiology and organized a national level symposia, workshops, refresher courses and training programmes related to Microbiology and Biotechnology. He has deposited around 250 nucleotide sequences in the GenBank (NCBI) and has visited USA, Hong Kong, Malaysia and Singapore to disseminate his expertise and to keep himself abreast of the advanced techniques in the field of Microbiology.