The consequences of negative marking in the UPSC Prelims can significantly affect a candidate's chances of qualifying. It discourages wild guessing, as incorrect answers lead to a reduction in the overall score. This system emphasizes the importance of accuracy in answering and promotes careful consideration before making choices. Candidates often resort to strategic guessing only when they can confidently eliminate options. Consequently, good exam strategy is focused on ensuring a solid grasp of concepts to maximize scoring opportunities without falling victim to negative marking.