Public speaking holds immense significance in preparing for the UPSC interview, as it develops essential communication skills. It enables candidates to articulate thoughts coherently and confidently in high-pressure situations. Regular practice of public speaking helps improve clarity, body language, and vocal modulation, necessary for making a positive impression. Engaging in mock interviews and discussion forums can enhance fluency and spontaneity in responses. Additionally, receiving constructive feedback aids in refining performance. Mastering public speaking not only boosts self-confidence but also equips candidates with skills to effectively convey their knowledge during the actual interview.