UPSC seeks key qualities such as integrity, adaptability, and strong communication skills in candidates during interviews. They look for a clear understanding of the role of a civil servant and a commitment to public service. Critical thinking, reasoning ability, and a balanced approach to complex issues are highly valued. Candidates should demonstrate a passion for continuous learning through their experiences and how they engage with societal challenges. The overall demeanor, confidence, and respect towards the interview panel also play a crucial role.