Followed as text book in many universities, that includes: University of North Benga, U.P. Technical University (Dr. A.P.J. Abdul Kalam-
Technical University, Lucknow), University of North Bengal, Mahamaya Technical University, Noida, SCSVMV University, Kanchipuram,
Lachoo Memorial College of Science & Technology (Autonomous), Bundelkhand University, Jhansi, Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya, etc. A unique book that provides GATE level questions, and solutions.