The thoroughly Revised and Updated 12th edition (2 colour) of Disha's BESTSELLER "27 Years UPSC IAS/ IPS Prelims Topic-wise Solved Papers 1 & 2 (1995-2021)" consists of past years solved papers of the General Studies Paper 1 & 2 distributed into 8 Units and 52 Topics. # This new edition includes Strategy Video by Mrunal, Notes & Sources for select questions. # The USP of the book is its flawless detailed solution to each and every question whose answer key has been validated with UPSC. # This new edition also includes an IAS Planner which will help the aspirants in planning their preparation for the Prelim & Main Exam. # This is the only book that provides Solved Papers of 27 Years of Prelim Exam along with Unsolved Questions of Mains Exam from 2013 to 2020. # The book has been empowered with Unique Inputs/ Articles by the author who is also one of the Most esteemed faculties for IAS - Mrunal on : • Understanding the IAS Exam & Strategies to Crack the Prelim & Main Exam. • How to Attempt the IAS Main Exam Questions? • How to approach the Economics section? • How to write Essays for GS IV Main exam? # The book provides UNSOLVED Mains Papers from 2013 - 20, divided topic-wise. The book also provides List of Essays divided topic-wise from 1993 - 2020. # The strength of the book lies in the Errorless DETAILED Solutions. The book is 100% useful for both the General Studies papers (1 and 2) of the Prelims/ CSAT.