Born in India in 1953,Professor K. P. Ghatak obtained his B.E degree in Electronics and Telecommunication Engineering in 1974 from the then Bengal Engineering College, Shibpur(Presently Bengal Engineering and Science University)and M.Tech degree from Institute of Radio Physics and Electronics of the University of Calcutta in 1976.He received his PhD(Tech) degree from the same Institute on the basis of 27 published research papers in eminent peer-reviewed International Journals in 1988 which is still a record in the same Institute. He is the First Recipient of the Degree of Doctor of Engineering of Jadavpur University in 1991 since the University inception in 1955 and in the same year he received the Indian National Science Academy Visiting Fellowship to IIT Kharagpur. He joined as Lecturer in the Institute of Radio Physics and Electronics of the University of Calcutta in 1983, Reader in the Department of Electronics and Telecommunication Engineering of Jadavpur University in 1987 and Professor in the Department of Electronic Science of the University of Calcutta in 1994 respectively and he was at the top of the merit list in all the cases.Presently, he is working as a Professor and Head of the Department of Electronics and Communication Engineering of National Institute of Technology, Agartala, West Tripura, India. He is the principal co-author of more than 150 research papers on Semiconductor and Nanoscience in eminent peer-reviewed International SCI Journals and more than 50 research papers in the Proceedings of the International Conferences held in USA and many of his papers are being cited many times. Professor Ghatak is the invited Speaker of SPIE, MRS, etc. and is the referee and Associate Editor of different eminent Journals. He is the supervisor of more than two dozens of Ph.D candidates in various aspects of materials and nanoscience and many of them are presently working as Professor, Associate Professor and Assistant Professor in different eminent Universities and Institutes. He is the principal co-author of the SIX research monographs entitled "Einstein Relation in Compound Semiconductors and Their Nanostructures" Springer Series in Materials Science, Vol. 116,2009 which is the first monograph on Einstein relation contaning more than 150 open research problems, "Photoemission from Optoelectronic Materials and their Nanostructures", Springer Series in Nanostructure Science and Technology, 2009 which is the first monograph devoted to Photoemission from nanostructured optoelectronic materials containing more than 100 open research problems, "Thermoelectric Power in Nano structured Materials: Strong Magnetic Fields" Springer Series in Materials Science, Vol. 137,(2010) which is the first monograph of this nature and contains 150 open research problems,"Fowler Nordheim Field Emission:Effects in Semiconductor Nanostructures" Springer Series in solid state Sciences, Vol. 170,2011 which is the first monograph on Field Emission from Nanostructures contaning 200 open research problems, "Effective Electron Mass in Low- Dimensional Semiconductors" Springer Series in Materials Science, Vol. 167,(2013) which is the first monograph of this nature and contains 250 open research problems and "Debye Screening Length: Effects of Nanostructured Materials" which will be published from Springer Tracts in Modern Physics in late 2013 and is the first monograph of this nature and contains 100 open research problems. The All Indian Council For Technical Education has selected the first Research and Development project in his life for the best project award in Electronics and second best research project award considering all the branches of Engineering for the year 2006. His teaching interests are Nanoscience and Technology, Non-linear Circuit Theory, Non-linear Control Theory, Non-linear Differential, Integral and Partial Differential Equations and Linear and Non-linear Mechanics in general. His present research interests are Semiconductor Nano Science and Analytic number theory.