Summarizing large amounts of study material for UPSC can be achieved through techniques like mind mapping, creating concise notes, and utilizing flashcards. Mind maps help visualize connections between concepts, facilitating better retention. While making notes, aspirants should focus on key points, definitions, and summaries of important articles or topics. Flashcards are effective for quick revision, especially for factual information. Implementing active recall during revision sessions also aids in cementing knowledge. Regularly revisiting these summaries allows aspirants to track progress and ensures efficient use of time in preparation for the UPSC exam.