Grasping historical context significantly aids candidates in the UPSC exam by providing depth to their answers, enabling them to relate past events to current issues. Historical context enriches responses by offering insights into patterns of governance and policy evolution. Candidates who understand these connections can present a nuanced perspective on questions related to India's socio-economic development, constitutional provisions, and international relations. This understanding also helps in answering questions requiring comparative analysis, ultimately allowing for comprehensive, well-rounded responses expected during examinations.