Kaustabh Kumar Maiti studied chemistry at University of Calcutta (India) and received his B.Sc Honours in 1991, M.Sc. in organic chemistry in 1993 and awarded Ph.D. from the same university in the year 2000. His Ph.D work on 1,3-dipolar nitrone cycloaddition reactions of cyclic and acylic nitrones with a wide variety of diplorafiles to construct different regio- and stereoselective nitogenous hetereocycles. He started his professional carrier in leading pharmaceutical R&D’s in India, 2000-2003 (Alembic Ltd. and Sun Pharmaceuticals Industries Ltd.) where he worked in process development of generic drugs and drug discovery program. After industrial training, he joined postdoctoral research at Pohang University of Science and Technology (POSTECH, 2003-2007), South Korea, with Prof. Sung-Kee Chung and worked on novel non-peptide based drug delivery system using inositol and carbohydrate as scaffold. He moved to Complex Carbohydrate Research Center (CCRC), The University of Georgia, USA to continue second postdoctoral research. In CCRC he worked Prof. Geert-Jan Boons’s group (2007 -2009) in the field of glycopeptide, structural aspects of peptidoglycan and LPS. Before joining at CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, he worked at Singapore Bioimaging Consortium (under Biomedical Sciences Institute, A*STAR) as a research scientist (2009-2012). His current research interest focused on synthesis and biological evaluation of synthetic (peptide, non-peptide, dendron scaffold) and nano-carrier based drug-delivery system for targeted delivery of small molecular drugs, proteins, nucleic acids and plasmid DNA. Also his interest on the development of diagnostic nanoprobe for infectious diseases as well as cancer detection and imaging by ultrasensitive biocompatible surface enhanced Raman scattering (SERS) nanotags.