Teaching others serves as a powerful method to reinforce learning for UPSC aspirants, facilitating deeper understanding of challenging concepts. By articulating knowledge clearly, candidates can identify gaps in their own understanding, prompting further review. Presenting complex topics to peers also hones communication skills, essential for the personality test phase. This process of peer teaching fosters confidence and retention, making it an effective way to internalize vast amounts of information. Overall, sharing knowledge reinforces learning and promotes collaborative growth among aspirants.