B. N. SARKAR (PhD) is Professor in the Department of Electrical and Electronics Engineering at Dayananda Sagar College of Engineering, Bangalore. He obtained his doctorate in Electrical Engineering from the University of Roorkee (now IIT Roorkee) in the year 1982. He has more than thirty years of teaching experience and has published/presented several technical papers in national and international technical journals/conferences. A fellow member of Institution of Engineers (India) and Ex-member of CIGRE (France), Professor Sarkar has authored two books including Textbook on Industrial Drives published by PHI Learning.