Levenspiels' Chemical Reaction Engineering has been designed as an introductory textbook for the undergraduate course in the domain. The text written in student-friendly style, helps students learn how to answer reactor design questions and develop a strong intuitive sense for good design. It builds on concepts progressively, with appropriate emphasis on assumptions made, why an alternative approach is not used, and to indicate the limitations of the treatment when applied to real situations. The Indian Adaptation of Chemical Reaction Engineering, Third Edition, is restructured at places and gives new and updated material to provide complete coverage of the course as per Indian curriculum.