Dr. P. Balasubramanian is the University Librarian of Manonmaniam Sundaranar Univesity, Tirunelveli-627 012 , Tamil Nadu. He holds M. A, MLISc, MPhil, MCA, MBA, PGDPR, and Ph.D. He is a life member of various professional bodies. His books on library and information science are very popular among the research scholars and library professionals.

He has published 49 books on library and information science and on general topics. He has presented 117 papers in seminars, conventions, conferences, and referred journals. He has organized many national and international seminars and workshops on various emerging topics of library and information science. He is also guiding M.Phil. and Ph.D. research scholars in library and information science.

He has already guided 9 M.Phil. and 26 Ph.D. scholars. At present he is guiding 6 Ph.D. scholars.

He has been teaching library and information science for 19 years.