How to Prepare for Civil Services by Upsc

General Studies and CSAT – Suggested Readings Stage 1-NCERT Books (in around 60 days@5-6 hrs/day or 30 days@10-12 hrs/day)
Geography - 6th to 12th Physics - 6th to 10th
Civics - 6th to 10th Chemistry - 6th to 10th
Pol Science - 11th to 12th Biology - 6th to 10th
History - 6th to 12th Maths - 6th to 10th
Sociology -11th to 12th Probability - 12th Maths
Economics - 9th to 12th Permutations & Combinations – 11th Maths
CSAT (will take around 3 months @ 5 hours/day) GRE word list + Wren and Martin Grammar + GMAT Reading Comprehension and Analytical Reasoning + Quantitative Aptitude by Arun Sharma + Vajiram CSAT (Blue cover books) + TMH CSAT manual
Stage 2 - Reference Books (in around 6 months@5-6 hours/day) and (Current Affairs and GK from the time you start reading the Reference books)
Reading Newspapers - {Indian Express / Times of India / The Hindu / The Economist} (any or all) Manorama Year Book + India Year Book (Government of India) + Yojana + Kurukshetra + Frontline + Outlook + Civil Services Chronicle + Vajiram & Ravi General Studies for Preliminary and Mains (Yellow cover books) + Any GS Manual (TMH or Spectrum)
Modern India - Grover & Mehta or Bipan Chandra + Pratiyogita Darpan Special Issue
Polity - Subhash Kashyap, M Laxmikanth, DD Basu, PM Bakshi (all are important)
Economy – Uma Kapila, Dutt and Sundaram + Pratiyogita Darpan Special Issue + Economics Dictionary + Economic Survey published by Government of India
Geography - D.R Khullar, Majid Hussain + Pratiyogita Darpan Special Issue
Stage 3 – Making notes from Reference books, newspapers and websites.
For government-related information www.pib.nic.in, www.goidirectory.nic.in and www.darpg.gov.in need to be followed to supplement your notes. Prepare topic-wise notes and update them every week. Going through past years question papers of Mains (Optionals as well as GS) and Pre (in case of GS and CSAT) will