Aspirants can synthesize vast amounts of information for UPSC preparation through effective note-taking and summarization techniques. Breaking down topics into manageable segments and using mind maps can help visualize connections between concepts. Incorporating current affairs into their study routine is key, as it allows candidates to relate theoretical knowledge to practical scenarios. Additionally, using online resources, such as quizzes and flashcards, can reinforce learning. Setting time aside for regular reviews and discussions with peers can bolster retention and comprehension, making it easier to assimilate large volumes of information efficiently.