Here is a comprehensive list of books that are highly recommended for UPSC preparation across different subjects: 1. Indian History: - "India's Struggle for Independence" by Bipan Chandra - "India's Ancient Past" by R.S. Sharma - "A Brief History of Modern India" by Rajiv Ahir - "History of Medieval India" by Satish Chandra - "From Plassey to Partition: A History of Modern India" by Sekhar Bandyopadhyay 2. Indian Polity and Governance: - "Indian Polity" by M. Laxmikanth - "Introduction to the Constitution of India" by D.D. Basu - "Governance in India" by M. P. Singh and Himanshu Roy 3. Indian Economy: - "Indian Economy" by Ramesh Singh - "Economic Survey" published by the Ministry of Finance (Government of India) - "Indian Economy: Performance and Policies" by Uma Kapila 4. Geography: - "Certificate Physical and Human Geography" by G.C. Leong - "Oxford School Atlas" by Oxford University Press - "Geography of India" by Majid Husain - "World Geography" by Majid Husain 5. General Science: - "NCERT Science textbooks" (Class 6-10) - "Science and Technology in India" by Spectrum Publications - "General Science for Civil Services Preliminary Examination" by S. A. M. Abbas 6. Environment and Ecology: - "Environment" by Shankar IAS Academy - "Environmental Studies: From Crisis to Cure" by R.Rajagopalan - "Environmental Ecology" by P.D. Sharma - "Oxford Handbook of Ecology" by Edited by Michael Begon, Robert W. Howarth, and Colin R. Townsend 7. Current Affairs: - "The Hindu" or "The Indian Express" newspaper (regular reading) - "Yojana" and "Kurukshetra" magazines (published by the Government of India) - "Manorama Yearbook" by Mammen Mathew 8. Essay Writing: - "Essays for Civil Services and Other Competitive Examinations" by Pulkit Khare - "151 Essays for UPSC Mains" by Disha Experts 9. Optional Subjects: Depending on your chosen optional subject, refer to the recommended books specific to that subject. Some popular optional subjects include History, Geography, Public Administration, Sociology, Political Science, Anthropology, and Literature. It's important to note that this list is not exhaustive, and there are many other books and resources available for UPSC preparation. It is recommended to refer to the latest editions and stay updated with the current syllabus and exam pattern. Additionally, apart from these books, practicing previous years' question papers and mock tests is crucial for exam readiness.