An interdisciplinary approach to subjects for UPSC can be adopted by integrating knowledge from various fields. This involves recognizing connections between politics, economics, and environmental studies, fostering a holistic understanding of complex issues. Engaging with materials from diverse disciplines can enhance critical analysis and enrich answers. Collaborative study sessions with peers from different academic backgrounds can also stimulate innovative thinking, helping candidates tackle multifaceted problems effectively. Such an approach prepares aspirants for the challenges they'll face in civil services.