Public speaking plays a crucial role in preparing for the UPSC interview as it enhances a candidate's communication skills and self-confidence. Effective communication is vital for articulating thoughts clearly and persuasively, showcasing knowledge and understanding of complex issues. Regular public speaking practice, such as participating in mock interviews or group discussions, helps candidates refine their ability to engage with diverse audiences. Furthermore, mastering public speaking techniques fosters an effective presence, enabling candidates to convey their messages confidently during interviews. Overall, honing this skill is integral for success in both the UPSC examination and future civil service roles.