Revision is an essential part of the preparation process for any competitive exam, including the UPSC. To maximize the effectiveness of revision, it can be helpful to learn from the strategies used by previous successful candidates. Here are some recommended revision strategies:

1. Planning and organization:
- Create a study schedule: Divide your time efficiently among different subjects/topics based on their importance and your level of understanding.
- Set realistic goals: Break down your revision into manageable chunks and set specific targets for each study session.
- Prioritize topics: Identify the areas where you need the most improvement and allocate more time to them.

2. Active learning techniques:
- Summarize and rewrite: Condense complex information into concise summaries or diagrams, aiding comprehension and retention.
- Teach others: Explaining concepts to someone else helps reinforce your understanding and identify knowledge gaps.
- Practice with past papers: Solve previous years' question papers to familiarize yourself with the exam pattern and identify weak areas.

3. Utilizing technology and resources:
- Online platforms: Take advantage of online resources like EduRev, which offer a wide range of study materials, mock tests, and interactive quizzes.
- Flashcards: Create flashcards to review key concepts, definitions, and formulas. Apps like Quizlet can be useful for this purpose.
- Digital note-taking: Use tools like Evernote or OneNote to organize and synchronize your study notes across devices.

4. Time management techniques:
- Pomodoro Technique: Break your study time into 25-minute intervals, with short breaks in between, to maintain focus and productivity.
- Time blocking: Allocate specific time slots for each subject/topic, ensuring equal attention to all areas.

5. Regular revision and self-assessment:
- Set aside dedicated time for revision: Regularly review previously learned topics to reinforce understanding and retention.
- Self-assessment: Test yourself regularly through quizzes, mock tests, or timed practice sessions to gauge your progress and identify areas that need further improvement.

Remember, everyone has their own preferred strategies for revision. Experiment with different techniques and find what works best for you. Consistency, discipline, and adaptability are key to successful revision.