Cross-disciplinary studies can enhance UPSC examination performance by allowing candidates to draw connections between different subjects, leading to a more integrated understanding of the spectrum of knowledge. For example, blending political science with economics can offer insights into how fiscal policies impact governance. Interdisciplinary approaches foster critical thinking and enable aspirants to approach questions from multiple angles, particularly in the analytical and essay portions of the exam. Emphasizing a holistic understanding of interconnected topics prepares candidates to answer complex questions more effectively, improving their overall performance in both the mains and interview stages.