The UPSC Civil Services Mains Examination holds significant importance as it evaluates a candidate's in-depth knowledge, analytical skills, and writing abilities. Not only does it test theoretical understanding, but it also assesses candidates' capacity for critical thinking and articulating complex ideas clearly. The Mains marks contribute considerably to the final selection merit list, making this stage crucial. Candidates must prepare extensively for subjects, current affairs, and essay writing, ensuring they are equipped to handle diverse question formats and display their comprehensive grasp of the syllabus.