There are several popular coaching centers in India that offer guidance and coaching for the UPSC (Union Public Service Commission) examination. Here is a list of some renowned coaching centers:

1. Chanakya IAS Academy
2. Vajiram and Ravi Institute for Civil Services
3. ALS IAS Academy
4. Rau’s IAS Study Circle
5. InsightsIAS
6. Shankar IAS Academy
7. Drishti IAS Academy
8. Vision IAS
9. BYJU’S IAS Coaching
10. Khan Study Group (KSG)
11. Classic IAS Academy
12. Sathya IAS Academy
13. ForumIAS
14. Pragnya IAS Academy
15. Officers IAS Academy
16. Delhi Institute for Administrative Service (DIAS)

These coaching centers provide comprehensive coaching programs, study materials, mock tests, and expert guidance to help aspirants prepare for the UPSC examination. However, it’s important to note that joining a coaching center is not mandatory for UPSC preparation. Many candidates have cleared the examination through self-study and online resources as well. The choice of joining a coaching center depends on individual preferences, study style, and availability of resources.