The 2 links in that link is the most precise story of how a lay men became a billionaire in the name of yoga. 

The writer is from northern India but he did a very good job in gathering and compiling this information from southern Indian states and published a very good article. 

This information is all available in Tamil and other language in the southern states but first time since translated to English. 

I was planning to a give a brief translation but Prateek Goyal from northern India without knowing Tamil or Kannada did a great job!

Kudos to him! I am very happy he brought a rare hidden information out in public thru English!