Revision is an essential part of the preparation process for the UPSC Law Optional subject. It helps consolidate knowledge, identify weak areas, and reinforce understanding. Here are some effective ways to revise the topics:

1. Create a Study Plan:
- Organize your study material and create a study plan that covers all the topics systematically.
- Allocate specific time slots for each subject or topic and follow the plan strictly.
- Distribute your revision time evenly to ensure all topics are covered adequately.

2. Review Lecture Notes:
- Go through your lecture notes, class handouts, and any additional material provided by your instructors.
- Highlight key concepts, case laws, and important points.
- Summarize the information in your own words to enhance understanding and retention.

3. Refer to Standard Textbooks:
- Consult standard textbooks recommended for the UPSC Law Optional subject.
- Read the relevant chapters and make concise notes.
- Focus on understanding the core concepts rather than just memorizing information.

4. Solve Previous Year Question Papers:
- Practice solving previous year question papers to familiarize yourself with the exam pattern and question types.
- Analyze your performance and identify areas where you need improvement.
- Pay attention to the keywords and phrases used in the questions to develop a better understanding of how to answer them effectively.

5. Make Mind Maps and Flowcharts:
- Create visual aids such as mind maps and flowcharts to summarize complex legal concepts.
- Use different colors, symbols, and diagrams to make them visually appealing and easy to understand.
- These visual aids can help in quick revision and aid in memory retention.

6. Group Discussions and Mock Tests:
- Engage in group discussions with fellow aspirants to exchange knowledge and clarify doubts.
- Participate in mock tests to assess your preparation level and improve time management skills.
- Analyze your performance in mock tests to identify weak areas and work on them.

7. Use Online Resources:
- Utilize online resources like EduRev (www.edurev.in) which provides comprehensive study material, notes, and practice questions for UPSC Law Optional subject.
- Access their vast collection of previous year question papers, study materials, and mock tests to enhance your preparation.

Remember, effective revision requires consistency, discipline, and a systematic approach. By following these strategies, you can enhance your understanding of the UPSC Law Optional subject and improve your chances of success in the examination.