Understanding geography is crucial for success in the UPSC exams as it provides candidates with a foundational understanding of the world's physical and human systems. Geography enhances analytical skills, aids in grasping environmental issues, and informs candidates about India’s regional dynamics, which are essential for multiple subjects, including GS papers and interviews. Additionally, a solid grasp of geography allows aspirants to relate local issues to broader global contexts, crucial for essay writing and the current affairs segment, thereby improving overall performance in the examination.