Characteristics that make a candidate suitable for civil services, according to UPSC, include a strong sense of integrity, empathy, and a commitment to public service. Mental resilience and adaptability are crucial, as are excellent problem-solving and decision-making skills. A candidate should demonstrate a comprehensive understanding of social issues and have the ability to articulate thoughts clearly under pressure. Additionally, leadership qualities and a collaborative approach towards team dynamics are essential. Overall, a well-rounded personality that encompasses both intellectual and emotional attributes is valued in civil services.