Disha Publication is back with the latest 15th Edition of India?s No.1 Bestselling Solved Papers with Flawless Solutions to Conquer IAS Prelims 2025! The thoroughly Revised and Updated 15th Edition (2 color) of Disha's BESTSELLER "30 Topic-wise UPSC Civil Services IAS Prelims Previous Years Solved Papers 1 & 2 (1995-2024)" consists of the past 30 years solved papers of the General Studies Paper 1 & CSAT Paper 2, organized into 8 Units and 52 Topics. # This new edition includes Strategy Video, Toppers Preparation Strategy, Notes & Sources for select questions. # The new edition divides the book into following 4 parts: Part I: Strategy & Planning Resources including Toppers Interviews. Part II: General Studies (Paper 1) IAS Prelims Questions distributed into 7 Units and 43 Topics. A total of 3560 MCQs (detailed solutions) along with Notes and Sources highlighted in a lot of important questions. Part III: Aptitude (Paper 2 - CSAT) IAS Prelims Questions distributed into 1 Unit and 9 Topics. A total of 1360 MCQs with detailed solutions. Part IV: IAS Mains Unsolved Questions of IAS Mains General Studies Papers 1 ? 4 from 2013 to 2023, divided topic-wise. The book also provides a List of Essays divided topic-wise from 1993 - 2023. # The USP of the book is its flawless detailed solution to each and every question whose answer key has been validated with UPSC. # Part I includes exclusive & unique Inputs, Tips and Articles. These include: ? IAS Planner which will help the aspirants in planning their preparation for the Prelim & Main Exam. ? 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 strength of the book lies in its ERRORLESS, DETAILED Solutions.