Hi,
I have some friends in auroville, been there since the seventies I think. They work on the water purification and how meditation and leylines effect them. Here is a link to the Auroville main page. They have a very good radio that is free of charge. Good for practical info and eco building.
http://www.auroville.org/
Radio link
http://ww.aurovilleradio.org
Aurobindu was a sound man, got alot of stick from the British and was one of the liberators of India. Top man.