Interdisciplinary knowledge plays a crucial role in the UPSC examination as the exam covers a wide range of subjects including politics, economics, and environmental sciences. A candidate's ability to draw connections between different fields fosters a more nuanced understanding of complex issues. Engaging with interdisciplinary studies allows aspirants to approach questions with a holistic perspective, enhancing their analytical skills. This broad knowledge base also enables candidates to tackle diverse topics effectively, making them more adaptable in written exams, interviews, and essay writing, resulting in better scores overall.