The UPSC examination pattern has evolved over the years, adapting to changes in societal needs and educational standards. Initially, the focus was more on subjective assessment, but it has shifted towards a blend of objective and subjective formats. The introduction of the CSAT has emphasized aptitude, while the inclusion of current affairs has made it imperative for candidates to stay updated. Another significant change is the increasing weightage given to essays and moral/ethical dimensions in examinations. These adaptations aim to better evaluate the comprehensive capabilities of future civil servants.