UPSC evaluates candidates' performance in the interview stage based on various criteria, including communication skills, critical thinking, and personality traits. Interview board members assess how well candidates articulate their thoughts, handle pressure, and respond to questions related to their background and current issues. The interview also gauges candidates' awareness of social, political, and economic topics. The Board seeks to evaluate a candidate's suitability for a civil service role, including leadership qualities and integrity. Ultimately, performance in the interview carries significant weight in final selection.