Paper I - General Studies1. History (Indian History and Indian National Movement)Essential: NCERT books IX, X, XI, XII Modern India by Bipin ChandraAdditional: History of Modern India by A.C Banerjee2. Geography (Indian and World Geography)Essential: NCERT books IX, X, XI, XII General Principals of World Geography by Charles Farro School AtlasAdditional: Certificate Course in Geography by Goh Cheng Leong3. Economics (Indian Economics and Economic Theory)Essential: An Evolution of Indian Economy by I.C. Dhingra Economic Survey of India by Govt. of India Economic Dictionary by Penguin Additional: Indian Economy by Dutta and Sundara Indian Economy by Mishra and Puri Economic Dictionary by Collins4. Polity (Indian Constitution)Essential: An Introduction to the Constitution of India by D.D. BasuAdditional: Our Constitution by Dr. Subhash Kashyap5. General Science (Physics, Chemistry, Biology) Essential NCERT books IX, XAdditional: Anatomy & Physiology by Evelyn Pearce6. Environment (Ecology, Bio-diversity, Climate Change)Essential: Biology and Geography NCERT Books plus current events on Environmental Issues7. Current AffairsEssential: Hindu and Economic Times Newspapers Frontline, Political & Economic Weeks PeriodicalsAdditional: India Year book Paper II Aptitude 1. NumeracyEssential: NCERT Mathematics VII, IX, X2. Data InterpretationEssential: Data Interpretation and Data Sufficiency by Tyra and Kundan3. English Comprehension and CommunicationEssential: Objective General English by R.S. Agarwal4. Logical ReasoningEssential: A Modern Approach to Verbal Reasoning by R.S. AgarwalAdditional: A new Approach to Reasoning by Sijwali and Sijwali