Communication skills significantly influence the overall performance of candidates in the UPSC examination by affecting their ability to express ideas clearly and persuasively. Effective verbal and written communication enables candidates to articulate their knowledge and opinions convincingly in essays and interviews. Strong listening skills also facilitate better comprehension of questions, allowing candidates to respond accurately and thoughtfully. Furthermore, these skills are critical during group discussions and interview panels, where clear articulation can impact an evaluator's perception. Overall, honing communication skills can enhance candidates' confidence, making it easier for them to engage and present their viewpoints effectively.