I just came across a blog post by Vinitha on Isha Foundation.
ஈஷா யோகா மையமும் வியாபாரத்தனமும்
Isha Yoga guys are very money minded. For most of the things they don't give bills, it is only donation, without accounting. Tough to understand the biz model, of these so called GOD Men!
I hope someone from government, audits them.
My two takes,
Their website http://www.ishafoundation.org/ is good for biz. It drives users (visitors) to them, and ensures there is enough "meat" to make them suck it on a regular day and tempt to visit the foothills of Velliangiri (Coimbatore) for the course and spend tons of cash.