Interdisciplinary subjects in the UPSC syllabi are crucial as they promote a holistic understanding of complex social, economic, and political issues. They encourage candidates to integrate knowledge from diverse fields such as political science, economics, and geography, allowing for a multifaceted approach to problem-solving. This integration is particularly important for general studies and helps in appreciating the interconnectivity of various issues. Moreover, understanding interdisciplinary relationships enhances critical thinking and analytical abilities, which are essential for forming comprehensive arguments in the examinations, thus preparing candidates for the multifaceted challenges of public administration.