During the UPSC civil services interview, candidates are assessed on a variety of skills, including critical thinking, communication, and problem-solving abilities. Interviewers evaluate a candidate's knowledge of current affairs, understanding of government policies, and overall personality traits such as leadership, integrity, and empathy. The interview also tests a candidate’s ability to express thoughts clearly and respond to unexpected questions or scenarios. Overall, it aims to gauge suitability for a career in public service and assess whether candidates possess the temperament and qualities necessary for effective administration.