In this book, we have provided you paper wise, topic wise and subject wise compilation of previous years questions of UPSC Mains exam, which will definitely make your preparation easier. It includes questions from GS1 to GS4 of the new syllabus from 2013 to 2023 and essays of the same period. Benefits of using a UPSC Mains previous year question book: Exam Pattern Familiarity: By analyzing past questions, you gain an understanding of the exam pattern, recurring themes, and question styles used by UPSC. This helps you strategize your preparation and focus on high-yield areas. Answer Writing Practice: Analyzing model answers exposes you to different writing styles, structuring techniques, and content presentation methods favored by examiners. You can then adapt these to improve your own answers. Identifying Important Topics: Analyzing past questions helps you identify topics frequently tested by UPSC, allowing you to prioritize them in your study plan. Time Management: Practicing writing answers within the stipulated time limit using past papers enhances your time management skills crucial for the real exam. Self-Assessment: Evaluating your answers against model solutions allows you to identify areas requiring improvement and track your progress over time.