To improve public speaking skills for UPSC interviews, candidates can adopt a holistic approach. Regularly practicing through mock interviews enables them to simulate the interview experience, building confidence and reducing anxiety. Participating in debates or joining public speaking clubs can enhance articulation and clarity, allowing candidates to express their thoughts effectively. Recording themselves while speaking helps with self-assessment, enabling candidates to identify areas for improvement in tone and pace. Lastly, seeking feedback from mentors and peers can provide constructive critiques, helping candidates refine their speaking style and content delivery before actual interviews.