UPSC assesses candidates' ability to analyze and present data through various means, including subjective questions in Mains and the Preliminary examinations. Candidates must interpret data accurately, formulate logical inferences, and express findings clearly in written form. In the aptitude test, data interpretation questions gauge how effectively candidates can analyze graphs and tables. Answers should reflect critical thinking skills and demonstrate an understanding of how data influences decision-making in societal contexts. This analytical ability is crucial for future civil servants who must tackle complex data-driven issues.