Common pitfalls candidates face while preparing for UPSC exams include poor time management, lack of strategic planning, and inadequate revision techniques. Many aspirants often overestimate their understanding of subjects, leading to neglecting essential topics or not completing the syllabus in time. Additionally, some may fall into the trap of relying excessively on coaching without active engagement in self-study. These pitfalls can lead to heightened stress and decreased confidence, making it essential for candidates to adopt disciplined study habits.