Best Booklist for IAS Prelims 2026: Subject-Wise UPSC Toppers’ Guide
History: Old NCERTs (R.S. Sharma, Satish Chandra), Spectrum – Modern India, Nitin Singhania – Culture.
Geography: NCERT 6–12, G.C. Leong, Oxford/Orient Atlas.
Polity: M. Laxmikanth, Class 11 NCERT – Indian Constitution at Work.
Economy: NCERT 11–12, Ramesh Singh (selective), Economic Survey & Budget.
Environment: Shankar IAS, NCERT 12 Bio (Env), Current Affairs.
Sci & Tech: NCERT 6–10, Current Affairs (ISRO, DRDO, AI).
Current Affairs: SAKSHIEDUCATION.COM, The Hindu/Indian Express, Sakshieducation/Vision/Insights monthly, Yojana/Kurukshetra.
CSAT: R.S. Aggarwal (Quant & Reasoning), PYQ practice, UPSC-level mocks.
Previous Year Question Papers: Arinant or Disha