Common mistakes made by candidates preparing for UPSC include inadequate time management, neglecting current affairs, and inconsistent study habits. Many aspirants often underestimate the importance of revision and fail to create a structured study plan. Over-reliance on coaching materials instead of effective self-study can lead to a shallow understanding of topics. Another pitfall is attempting to cover too many subjects simultaneously, which can lead to burnout. To improve, candidates should focus on building a comprehensive strategy that balances thorough knowledge acquisition with regular assessments of their readiness and progress.