Common mistakes made by candidates in the UPSC Civil Services Exam include inadequate time management and over-reliance on multiple resources. Many candidates fail to create a focused study plan, resulting in uneven coverage of the syllabus. Poor attention to current affairs can lead to lower scores, making it essential to integrate them into daily studies. Furthermore, neglecting answer writing practice often results in insufficient articulation of ideas during exams. Additionally, some aspirants make the error of underestimating the interview stage or shy away from revising their answers critically, which can significantly impact their overall performance.