Critical thinking can be applied in UPSC examinations by encouraging candidates to analyze questions from multiple perspectives. Instead of merely recalling facts, it involves evaluating arguments, identifying underlying assumptions, and drawing logical conclusions. By employing critical thinking, candidates can dissect complex issues into manageable parts, allowing for better articulation of their responses. This skill enables them to approach questions with a deeper understanding, thus enhancing the quality of their written answers and oral presentations. Practicing this mindset prepares aspirants to tackle the unpredictable elements often found in civil services examination questions.