This book boasts of presenting IAS aspirants with maximum number of case studies presented at one place in this paper till date. The right way to answer case-study questions are also given so as to facilitate the UPSC candidates to the maximum for scoring best possible marks in this rather difficult Paper. Various appendices are given to acquaint UPSC candidates with primary sources of information on this Theme, such as, right to public services legislation in India; The right of citizens for time bound delivery of Goods and Services and Redressed of their grievances Bill, 2011; India?s Citizen?s charter and Grievance Redressed Bill, 2011; official secrets Act of India, 1923; and the international NGO accountability charter. Previous years? questions of IAS GS Mains paper IV on ?ethics, Integrity & Aptitude? are given with focus on model questions of IAS GS Mains paper IV: ethics, Integrity & Aptitude for 2018.