The UPSC syllabus for the preliminary exam is structured around two main papers: General Studies Paper I and General Studies Paper II (CSAT). Paper I covers a wide range of subjects, including History, Geography, Economics, Polity, and current affairs. Paper II, or CSAT, evaluates aptitude skills like comprehension, logical reasoning, and numerical ability. This comprehensive syllabus ensures that candidates are assessed on both general knowledge and analytical abilities, crucial for effective civil service. Each paper aims to gauge a holistic understanding relevant to the practical challenges faced by civil servants.