Professor P.V.Indiresan has taught in the IITs for forty years. He has been director of IIT Madras and is a Past President of the Indian National Academy of Engineering, and also of the Institution of Electronics and Telecommunication Engineers.  He is one among the two dozen Honorary Members of the Institute of Electronics and Electrical Engineers, USA among whom a dozen are Nobel Prize winners.  He has been awarded the          Padma Bhushan and his students have built a hostel in his name at IIT Delhi.  He writes on alternate Mondays in the Hindu Businesline.