Interdisciplinary skill sets such as critical thinking, data analysis, and effective communication are beneficial for addressing complex scenarios in UPSC exams. Proficiency in quantitative reasoning aids in interpreting data, while understanding ethics and sociology contributes to analyzing social structures. Familiarity with environmental science and law can also offer fresh perspectives on current issues, making candidates well-rounded. Integrating knowledge from diverse disciplines allows aspirants to draw connections between various topics, enhancing their analytical capabilities and overall problem-solving skills.