Yoga

Ayurved & Unani Tibbia College and Hospital Ajmal and Chaudhary Brahm Prakesh Charak Ayurved Sansthan.
These are some of the best.

Yes, you can register yourself as a practitioner.
Please refer to the link for details: http://ayush.gov.in/acts-rules-and-notifications/guidelines-registration-naturopathy-practitioners-and-accreditation-institutions

Your career interests are very varied. You should pick one career line and pursue others as a hobby or as a professional interest on the side, one which you are really good at, or one that you feel you can make a career out of, whereas others you can practice in your free time. Mixing your careers is never a good idea.