The total number of papers in the UPSC Civil Services Main Examination is nine. This examination consists of two qualifying papers in any Indian language and English, followed by an array of optional papers chosen by the candidate. Among these, there are descriptive papers covering various subjects essential for public service, thereby testing candidates' critical thinking, analytical skills, and depth of understanding. The nine-paper structure ensures that aspirants are thoroughly evaluated across multiple domains before advancing to the final interview stage for selection.