Essential skills for handling group discussions in UPSC include effective communication, strong interpersonal skills, and the ability to articulate thoughts clearly. Candidates should actively listen to others, demonstrating empathy and respect. Critical thinking is vital, enabling candidates to analyze various perspectives and formulate arguments based on evidence. Furthermore, maintaining composure under pressure while encouraging a collaborative atmosphere can significantly impact the discussion's outcome. Developing these skills not only enhances performance in group settings but also prepares candidates for various evaluation formats in the UPSC exam.