The lexicon for ethics, Integrity & Aptitude' Has come with its fully revised seventh edition. The acceptance of this book by the readers imposes a responsibility on us to keep the book updated to follow the footsteps of the contemporary period. Also the dynamism in society and changing administration necessitated the edition. This new edition comes with two new chapters namely 'professional code of ethics' And ?international relation & ethics? and covered more dimensions of ?ethical issues?. 'professional code of ethics' -In all profession there exists dilemma ? what is right and what is wrong. Most of the case study questions are based on professional conduct. So, to make our readers informed about such norms, we have added this Chapter this Chapter deals with topics like ethical codes for different professionals, how to develop a professional code of ethics, etc. International relation & ethics -ethical questions are central to the study of international relations, as it is a field of study concerned with war and peace, trade and production, and law and rights. In this Chapter various topics discussed are - ethics in international affairs/ relations, cultural relativism, ethical issues in international affairs, soft power, social capital, etc. The important concepts of emotional intelligence, attitude and Aptitude, foundational values, probity in governance, conflict in administration, etc. Are important ingredients of this lexicon. Moral thinkers and their philosophies, enriches the beauty of the book. Also, the questions from the previous years' Paper justify the application of the concepts given in this book.