S.K. SINGH, is Head, Maintenance Services Group (Electrical) and Telecommunication, Tata Steel Limited, Jamshedpur. With over 28 years of teaching and industrial experience in design, development and implementation of process control automation, and process improvement initiatives, he has published several papers in both national and international journals. A Fellow of the Institution of Engineers (India) and a Chartered Engineer, he has authored several textbooks for the undergraduate and postgraduate students of engineering. He is also the recipient of Eminent Engineer’s and Distinguished Engineer’s Awards for his contribution in the field of engineering.