Critical thinking shapes the preparation strategy for UPSC candidates by encouraging them to analyze, evaluate, and synthesize information from diverse sources. This skill fosters an in-depth understanding of complex societal issues, enabling aspirants to form reasoned opinions and judgments. Critical thinking aids in identifying biases, understanding different viewpoints, and developing robust arguments. It also enhances problem-solving abilities, allowing candidates to approach case studies or policy-related questions more effectively. Ultimately, incorporating critical thinking into study routines improves both written and oral communication skills, essential for success in UPSC.