 In 1960, he was appointed as associate professor at the University of Waterloo, eventually serving as chairman of the Electrical Engineering department.During this time, he also spent a year back at Michigan State where he finished co-authoring his first book, "Analysis of Discrete Physical Systems", co-authored with Herman Koenig and Yilmaz Tokad and published several years later.For a period of five years, he returned to India to serve as the first chairman of Electrical Engineering at the Indian Institute of Technology Kanpur and concurrently as head of its nationally significant Computer Centre.