The UPSC interview, or Personality Test, focuses on assessing a candidate's character, communication skills, and overall personality, which is different from written exams that primarily evaluate knowledge and written expression. In the interview, candidates face a panel that asks open-ended questions, allowing them to express their thoughts, reasoning, and decision-making abilities. Unlike written exams, which rely on structured answers, the interview requires candidates to demonstrate their interpersonal skills and ability to engage in thoughtful dialogue, reflecting their suitability for civil services.