Mathematics is a popular optional subject for UPSC aspirants who have a strong background and interest in the subject. It is a scoring subject and can significantly enhance one's overall score in the UPSC examination. To prepare effectively for the Mathematics Optional, there are several coaching institutes that offer guidance and support. Here are some notable coaching institutes for Mathematics Optional:

1. SuperProfs:
- SuperProfs is an online platform that offers comprehensive coaching for Mathematics Optional.
- They provide live interactive classes, study materials, and doubt-solving sessions to help students understand complex concepts.
- The platform is user-friendly and allows students to access lectures and study materials at their convenience.

2. Ramanasri Institute:
- Ramanasri Institute is a renowned coaching institute in Delhi that specializes in Mathematics Optional.
- They offer both offline and online classes, providing flexibility to students.
- The faculty at Ramanasri Institute is experienced and well-versed with the UPSC syllabus, helping students prepare strategically.

3. IMS Mathematics Optional:
- IMS is a popular coaching institute that offers guidance for various UPSC optional subjects, including Mathematics.
- They provide comprehensive study materials, practice questions, and test series to help students assess their preparation level.
- The faculty at IMS has expertise in Mathematics and focuses on building conceptual clarity among students.

4. Vajiram and Ravi:
- Vajiram and Ravi is one of the oldest and most reputed coaching institutes for UPSC preparation.
- They offer Mathematics Optional coaching with a focus on developing problem-solving skills and analytical thinking.
- Vajiram and Ravi provide a structured approach to Mathematics Optional preparation, covering the entire syllabus systematically.

5. Chanakya IAS Academy:
- Chanakya IAS Academy is a well-known coaching institute that offers guidance for UPSC preparation.
- They have experienced faculty who provide comprehensive coaching for Mathematics Optional.
- Chanakya IAS Academy provides regular mock tests and personalized feedback to help students track their progress.

In conclusion, there are several coaching institutes that offer guidance for Mathematics Optional in UPSC preparation. These institutes provide comprehensive study materials, experienced faculty, and regular assessments to help students excel in the subject. Aspirants can choose the coaching institute that aligns with their learning preferences and schedule to make the most of their Mathematics Optional preparation.