Aspirants can draw connections between subjects during UPSC preparation by identifying interdisciplinary themes that link different areas. For instance, understanding how environmental issues relate to economics can provide a holistic view of sustainable development. Candidates should focus on creating thematic maps or cross-subject comparisons to integrate knowledge. Engaging in group discussions or study circles can also facilitate a more interconnected understanding of topics. This approach not only enhances retention and comprehension but also enables aspirants to respond more dynamically in both the written exams and interviews.