The UPSC interview process, also known as the Personality Test, plays a vital role in the selection of candidates. It assesses not only a candidate's academic knowledge but also their personality, leadership qualities, and interpersonal skills. The interview panel evaluates how candidates articulate their thoughts, respond to stress, and exhibit integrity and maturity. This comprehensive evaluation helps ensure that candidates possess the necessary qualities for effective public service. Ultimately, the interview serves as a tie-breaker between candidates with similar scores, making it crucial for determining the final selection.