Public speaking practice is pivotal for articulating ideas effectively in UPSC interviews. It enhances a candidate's ability to express their thoughts clearly and confidently, which is essential during interviews where communication skills are closely evaluated. Engaging in debates, group discussions, and elocution competitions can sharpen speaking abilities and improve body language. Moreover, rehearsing answers to common interview questions allows aspirants to refine their communication style. This practice fosters not only fluency but also an engaging delivery, ensuring candidates can present their viewpoints persuasively and assertively.