K.S. GHOSH, PhD, is Professor in the Department of Metallurgical and Materials Engineering, National Institute of Technology (NIT), Durgapur, W.B. Earlier, he has served the NIT, Warangal for fifteen years. Also, he has published about fifty four (54) technical papers in reputed national and international journals and presented many conference papers. He is also the author of “Foundation of Welding Technology”, published by PHI Learning. Additionally, he has contributed two book Chapters in the other publications.