Essay papers play a significant role in evaluating candidates in the UPSC Mains, testing both their analytical and writing capabilities. These papers enable candidates to express complex thoughts clearly and coherently while demonstrating their understanding of critical issues. The essays assess not just factual knowledge but also critical thinking and the ability to construct well-reasoned arguments. They challenge candidates to integrate knowledge across subjects, fostering a holistic approach to problem-solving. Moreover, strong essay writing reflects a candidate's potential for effective communication, a vital skill for civil servants.