To build confidence for public speaking, especially during UPSC interviews, candidates can adopt several techniques. Practicing public speaking regularly in diverse settings helps desensitize anxiety. Utilizing visualization techniques to imagine positive outcomes or favorable interviewer responses can bolster self-belief. Additionally, recording mock interviews for self-analysis fosters awareness of speaking pace, tone, and body language. Engaging in group discussions with peers cultivates confidence and communication skills. Lastly, focusing on message clarity rather than perfection encourages candidates to express their thoughts freely, promoting a more natural delivery during actual interviews.