International organizations hold significant relevance in the UPSC syllabus as they are pivotal to understanding global dynamics and India's role in the international arena. Aspirants are expected to have knowledge about organizations like the United Nations, World Bank, and International Monetary Fund, among others. Familiarity with these organizations helps candidates comprehend topics related to international relations, bilateral agreements, and developmental issues. Additionally, current events often link back to activities involving these organizations, making this knowledge essential for both the preliminary and mains examination.