Dr. Sanjay Kumar Batra is an Associate Professor, Department of Chemistry, Sri Venkateswara College, University of Delhi and has experience of twenty-six years of teaching Physical Chemistry. He has published several research papers in international journals of high repute. His research field includes molecular spectroscopy, drug development, molecular immunology and applications of nanotechnology. He is a reviewer in several international journals. He has authored and co-authored several books on Environmental Science, Green Chemistry, Science & Life, Experiments in Physical Chemistry and Practical Green Chemistry, etc. He has also co-authored numerous chapters on Application of Nanomaterials in international books.Dr. Kanchan Batra, Assistant Professor, Kalindi College, University of Delhi, Department of Zoology, has experience of teaching for seventeen years in the fields of ecology, diversity of chordates and environmental studies, etc. She was awarded Gold Medal for M.Sc. (Zoology). She has authored and co-authored a number of books on Science and Life, Environmental Science, and several chapters in international books of high repute in the field of Nanotechnology.Prof. Harpreet Kaur, Principal, Mata Sundri College for Women, Delhi University, has twenty-eight years of teaching experience. She has authored and co-authored a number of books including Democracy and Governance in India; Public Administration in Theory and Practice; Politics, Ethics and Social Responsibility of Business Reservations in India; Recent Perspective in Higher Education; Corporate Governance, among others. She has published a number of papers in national and international journals. She has presented a number of papers in national and international conferences notably at Stanford University, California, USA and Warsaw School of Economics, Warsaw, Poland.And Parul Pant. ... Read more Read less