The Union Public Service Commission (UPSC) Civil Services Exam Syllabus is divided into three categories, namely Preliminary, Mains and Interview.
The Preliminary syllabus is mainly designed to assess a candidate's comprehension of current affairs and aptitude within the stipulated time. The preliminary paper is a compulsory and qualifying paper.
The Mains syllabus is basically designed to judge a candidate's academic expertise in his/her specialised subject. The syllabus also focuses on testing aspirants' ability to present knowledge in a clear and coherent manner.
The main examination has 9 papers and the syllabus is designed according to the subjects specified. The Preliminary and Mains syllabus is designed for written test. Candidates, who emerge successful in the Preliminary and Main examination, can appear for the interview.