Candidates should follow an organized list of books which is given in the following table :

SubjectUPSC Books
HistoryPart I, II, and III of Themes in Indian History Old NCERT by RS Sharma
Indian Art And CultureAn Introduction to Indian Art of NCERT Standard XI and XII Indian Art and Culture by Nitin Singhania
GeographyIndia: Physical Environment of Class XI and XII NCERT Certificate Physical and Human Geography by Goh Cheng Leong
Indian PolityNCERT Standards VI and VIII( for basic concept) NCERT Standards IX and XII for (for Democracy and Federalism ) Indian Polity for Civil Services Examinations by M. Laxmikanth Objective Indian Polity: General Studies – Paper I by M. Laxmikanth
EconomicsMacroeconomics of NCERT Class XII Indian Economy by Ramesh Singh Economic Survey by the Ministry of Finance
International RelationsNCERT XII (Contemporary World Politics) Current Affairs
General Issue on EnvironmentIndia Year Book by Publications Division Science: Class XII Biology
General Science and Current AffairsGeneral Science of IX and X standard
CSATNCERT Maths 6,7,8 Standard Verbal & Non-Verbal Reasoning – R S Aggarwal Tata McGraw Hill CSAT Manual CSAT II – Arihant