Key challenges faced by UPSC aspirants include the vast syllabus, intense competition, time management, and the pressure of achieving high ranks. Many candidates struggle to cover the extensive subjects within the limited period available. Furthermore, maintaining consistent motivation and dealing with uncertainties during preparation can be daunting. Additionally, balancing preparation with personal commitments poses a practical challenge. Mastering these challenges requires effective strategies, disciplined study habits, and robust support systems to enhance chances of success.