UPSC evaluates candidates' grasp of international relations through various components of the examination, including the preliminary and mains tests, as well as the interview. Candidates must demonstrate an understanding of global issues, diplomatic relations, and international policies. The focus is on analysis and application rather than rote learning; hence, students are encouraged to stay updated on current affairs related to international developments. Comprehensive knowledge, critical thinking, and the ability to communicate insights are essential in this evaluation process.