The marking scheme for UPSC examinations varies by stage. In the Prelims, each correct answer typically earns two points, while wrong answers incur a penalty of 0.66 points, promoting strategic guessing. The Mains examination consists of nine papers, with specific scores allotted to each. The overall assessment evaluates not just the correctness of answers but also the depth of analysis and presentation skills. The final merit list combines marks from both the Mains and the personality test (Interview), making it crucial for candidates to perform well across all stages to secure a favorable ranking.