Effective communication significantly influences performance in the UPSC interview by enabling candidates to articulate their thoughts clearly and confidently. Proficient communication involves not only clarity in speech but also active listening skills, ensuring engagement with the interview panel. Candidates must convey their ideas coherently, demonstrating knowledge and analytical abilities. Additionally, non-verbal cues, such as body language and eye contact, play a role in projecting confidence and sincerity. Mastering these communication skills can greatly enhance an aspirant's chances of making a positive impression during the interviews.