Introduction:
Preparing for the UPSC sociology optional exam requires a comprehensive understanding of various topics that are commonly asked in the exam. Allocating specific time to revisit these topics can be beneficial in ensuring a thorough revision and better performance in the exam.

Benefits of Allocating Specific Time:
1. Consolidation of knowledge: Revisiting topics that are commonly asked in the UPSC sociology optional exam helps in consolidating the knowledge gained during the initial preparation. It allows the candidate to reinforce their understanding of important concepts, theories, and research studies.

2. Identification of knowledge gaps: Allocating specific time for revisiting topics enables the candidate to identify any knowledge gaps or areas where they need further clarification. This can help in focusing their efforts on strengthening weak areas and improving overall comprehension of the subject.

3. Retention of information: Regular revision of important topics enhances the retention of information. By revisiting these topics periodically, candidates can reinforce their memory, ensuring that the knowledge remains fresh in their minds during the exam.

4. Practice and application: Revisiting commonly asked topics provides an opportunity for candidates to practice applying their knowledge. They can attempt previous years' question papers or solve sample questions related to these topics to gauge their understanding and improve their writing skills.

5. Time management: Allocating specific time for revision helps in better time management. By setting aside dedicated slots for revisiting commonly asked topics, candidates can ensure that they cover all the important areas without neglecting any particular topic.

Effective Revision Strategies:
1. Create a revision schedule: Plan a schedule that includes regular revision slots for commonly asked topics. Allocate sufficient time for each topic based on its importance and complexity.

2. Utilize study materials: Make use of reliable study materials, such as textbooks, notes, and online resources like EduRev, to revisit the topics. Ensure that the study materials are comprehensive and cover all the relevant aspects of the subject.

3. Revise through active learning: Instead of passively reading through the topics, engage in active learning techniques like summarizing the key points, creating mind maps, or discussing the topics with fellow aspirants. This enhances understanding and retention of information.

4. Attempt practice questions: Solve previous years' question papers and sample questions related to the commonly asked topics. This will help in familiarizing oneself with the exam pattern, identifying areas of improvement, and practicing answer writing skills.

5. Seek guidance if required: If there are any concepts or topics that are particularly challenging, seek guidance from mentors, teachers, or fellow aspirants. Joining online forums or study groups can also provide valuable insights and support during the revision process.

Conclusion:
Allocating specific time for revisiting topics that are commonly asked in the UPSC sociology optional exam is a prudent strategy for thorough preparation. It aids in consolidating knowledge, identifying knowledge gaps, retaining information, practicing application, and managing time effectively. By following effective revision strategies, candidates can enhance their performance in the exam and increase their chances of success.