While Engineering Marvels make lives of people better, accidents and disasters pose challenges to engineers in edition to affecting the public.  A deeper investigations of these mishaps leads to pointing the finger on the conduct of engineers, their inability to either identify or resolve the identified moral  issues in an appropriate manner. While sometime this inability can be traced to incompetence, majority of the times it turns out to be the pressure by the management whose priorities differ from that of the professional engineers. The engineer is pressed to handle these two factors along with his/her own ignorance or arrogance, to make sure that public is not victimized.

Therefore, there is a need to expose the engineering students to the ethical  considerations of engineering problems in edition to the technologies and standards taught in engineering education. While curriculum focuses on external engineering aspects in terms of meeting standards, facilitating practice of ethical conduct focuses on inner engineering and inculcates and nurtures the sense of responsibility and accountability in the engineering graduates. This further promotes integrity in the qualified engineers to conduct profession in the most ethical manner. This dimension of engineering education that gives inputs  on the ‘third dimension’ of engineering, viz., values of engineering profession can be termed as engineering aptitude.

This third edition is next step in pursuit of excellence in making the content further more relevant, comprehensive that can catalyze the performance of the candidates in the UPSC examination. Redundancy is at its minimum by way of providing all the relevant information in one place in this edition. Context fitting examples, illustrations, case studies and pictorial representation of some abstract concepts are some of the hallmarks incorporated in this edition.

Some of the case studies and illustrations that were discussed in the classrooms have been incorporated in this book with the aim of making these discussions available to the candidates who cannot make it to classrooms. Authors are of the firm conviction that students would enjoy not only reading this new book but also content relevant practice questions included in the career. This edition is markedly different from previous editions with content relevant practice questions included in the appropriate places. Another deviation of this edition from previous editions is inclusion of previous ESE questions.