Factors influencing changes in the UPSC exam format over the years include advancements in educational methodologies, evolving societal needs, and shifts in governance. The introduction of the preliminary exam aimed to streamline candidate selection by focusing on merit and knowledge. Changes in syllabus also reflect the need for a more comprehensive assessment of candidates' aptitude in current affairs, social issues, and climate challenges. Moreover, feedback from previous candidates and experts has led to adjustments in question formats, promoting analytical and practical skills rather than rote memory. Continuous improvement ensures that the examination remains relevant to contemporary demands.