I. J. NAGRATH MS (Wisconsin University), was Professor and Deputy Director, Birla Institute of Technology and Science, Pilani. He has published several research papers in prestigious journals. Professor Nagrath has worked across a wide range of areas including Controls Electric Machines, Power Systems, Signal and System, Robotics and Electronics. Electronics:Analog and Digital and Electronic Devices and Circuits are his two popular books, published by PHI Learning. Besides, he has authored and co-authored many books in this areas.