This festschrift is in honour of Dr K Nageswara Rao. Dr K Nageswara Rao was born on 25th December 1964 in Andhra Pradesh, and obtained his B.Sc from SV Arts College, Tirupati in 1986. He was awarded M.Sc (Physics) by SV University; Tirupati in 1988. He completed BLISc and MLIS from SV University and Annamalai University in the years 1990 and 1992, respectively. He was awarded Ph.D by the University of Mysore in 2009. In addition, he has also obtained PGDCA from Jawaharlal Nehru Technological University, Hyderabad in the year 1991. He started his career as Scientific/Technical Assistant ‘A’ in National Informatics Centre, Hyderabad in 1993 and after two years of service he joined Naval Physical Oceanographic Laboratory, Kochi as Scientist 'B' in 1995. Then he moved to Defence Research & Development Laboratory (DRDL), Hyderabad in 1999. He was promoted as Scientist ‘G’ in 2017 and served as Technology Director in DRDL till August 2021. Later he was appointed as Director, Defence Scientific Information & Documentation Centre (DESIDOC), Delhi in September 2021 and promoted as Outstanding Scientist in October 2024. He authored more than 20 articles in journals and conferences. Under his guidance, two candidates were awarded Ph.D Degree from Osmania University, Hyderabad. Dr K Nageswara Rao served as Editor-in-Chief of the Defence Science Journal, Defence Life Science Journal and DESIDOC Journal of Library & Information Technology and DRDO Monographs series.