Previous years’ question papers are crucial for UPSC preparation as they provide insight into the exam pattern, frequently asked questions, and topics that hold significant weightage. By practicing with these papers, aspirants can familiarize themselves with the timing, structure, and type of questions expected. Analyzing past papers also helps in identifying recurring themes and areas of focus, guiding study priorities effectively. Moreover, attempting these papers under exam conditions can aid in improving self-confidence, time management, and overall preparedness for the actual exam.