UPSC candidates can employ various strategies to effectively summarize complex concepts. Techniques such as creating conceptual maps or diagrams can help visualize relationships between ideas. Breaking content into simpler components and using bullet points for key details enhances clarity. Additionally, summarizing material in one's own words ensures better understanding and retention. Practicing concise writing through mock answers can further refine this skill. Regular discussions with peers or mentors can provide new insights and foster collaborative learning, ultimately aiding in navigating complex subject matter.