Aspirants can draw connections between different subjects in the UPSC syllabus by recognizing the interrelatedness of topics. For instance, understanding political science can enhance knowledge in constitution and governance, while insights from economics can deepen comprehension of geography and environmental issues. Employing a multi-disciplinary approach helps in grasping complex issues and encourages critical thinking. Interconnections can also be valuable in essay writing and in tackling questions that require integrated knowledge. Utilizing resources like current affairs and case studies enriches this inter-disciplinary understanding, essential for the holistic evaluation in this competitive examination.