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