This isn't a news. He has been doing this for a while.
Ramdev adopted the Google model. Give something valuable to the people for free to increase the customer base. They will come back to pay you directly or indirectly.

Nothing wrong with that model as long as it is used for a greater good. The issue I have is the claims made by non-highly trained teachers in supplying the herbal cures. They claim they have studies done on the various subjects, but most of them hardly pass the scientific rigor and statistical proof (to prove/disprove a hypothesis) to be claimed a "cure."

His biggest gift to his followers, still remain the gift of yoga.