MPhil, was formerly head of Physics Department, Vivekananda College, Tiruvedakam. He obtained his MSc degree in applied physics from Calicut University and MPhil degree from Madurai Kamaraj University with specialisation in solar energy. He has 35 years of teaching experience at undergraduate level. A prolific author, Mr. Murugeshan has written several textbooks for under-graduate physics students, such as Modern Physics, Allied Physics, Properties of Matter and Acoustics for BSc, Thermal Physics, Physics-I, Optics and Spectroscopy, Properties of Matter — all published by S Chand And Company Ltd, New Delhi.