Yes, there are online study groups and forums where you can discuss and clarify doubts related to the law optional subject for the UPSC exam. These platforms provide a space for aspirants to interact with each other, share resources, and seek guidance from experts. One such platform is EduRev.

EduRev is an online learning community that offers a variety of study materials, including notes, videos, and practice questions, for various competitive exams, including UPSC. It also has a dedicated section for law optional subjects where you can find study materials specifically tailored for the UPSC exam.

Here are the key features and benefits of using EduRev for discussing and clarifying law optional subject doubts:

1. **Study Groups**: EduRev allows you to join study groups related to the law optional subject. These study groups consist of like-minded aspirants who are preparing for the UPSC exam and are studying the same subject. In these groups, you can post your doubts, participate in discussions, and get answers from fellow aspirants or experts.

2. **Forums**: EduRev has a dedicated forum section where you can post your doubts and queries related to the law optional subject. These forums are regularly monitored by experts who provide timely and accurate responses to your queries. You can also browse through existing forum threads to find answers to common doubts that have been previously discussed.

3. **Live Classes**: EduRev also offers live classes conducted by experienced faculty members. These classes provide a platform for interactive learning where you can ask questions and clarify doubts in real-time. The faculty members are well-versed in the law optional subject and can provide expert guidance to help you understand complex concepts.

4. **Resources**: EduRev has a vast collection of study materials for the law optional subject, including comprehensive notes, video lectures, and practice questions. You can access these resources to enhance your understanding of the subject and clarify any doubts you may have.

5. **Community Support**: The EduRev community is vibrant and supportive. You can connect with fellow aspirants who are studying the law optional subject and form study groups or study circles to discuss and clarify doubts together. This sense of community can provide motivation and encouragement throughout your preparation journey.

In conclusion, EduRev is an online learning platform that offers study groups, forums, live classes, and a wide range of study materials to help you discuss and clarify doubts related to the law optional subject for the UPSC exam. It provides a supportive community of aspirants and expert faculty members who can guide you in your preparation.