Mock interviews prepare UPSC candidates for real-life scenarios by simulating the interview environment and providing constructive feedback. These practice sessions help candidates improve their communication skills and boost confidence in articulating their thoughts clearly. Mock interviews also familiarize aspirants with typical questions and current issues, enabling them to formulate coherent responses. Additionally, learning to handle pressure and unexpected questions in a supportive setting enhances mental preparedness. Insights gained from mock interviews guide candidates on areas for improvement and strategies to manage anxiety during the actual interviews.