Dr. M T Sebastian is currently Deputy Director, National Institute for Interdisciplinary Science and Technology at Trivandrum in India. He obtained his Ph.D. in Physics from Banaras Hindu University in 1983. He taught physics at Cochin University of Science & Technology during 1984-87. He was an Alexander Von Humboldt Fellow in Germany and Nokia Visiting Fellow in Finland. He has done extensive researches in USA, UK, France, Germany, Australia, Czech Republic, Australia, Japan and Finland. He has co-authored the book “Random non-random and periodic faulting in crystals? published by Gordon & Breach Science publishers (1994). He has published more than 160 research papers in international refereed journals and possesses several patents. His research interests are microwave ceramic dielectric resonators, perovskites electrode materials, crystal growth and defect characterization, X-ray scattering from disordered structures, electronic packaging materials.