I was asked this question by Nikhil, who works on open Data in Pune, and I
thought I should post this question to the OSM India Mailing list
A Devrai (Sacred Grove) is many things at once:
1. A place of worship
2. A patch of forest / woodland
3. A community-led biodiversity conservation hotspot
This is amazing, never knew about something like this. Details:
https://en.wikipedia.org/wiki/Sacred_groves_of_India
The most appropriate tag might be: boundary=protected_area +
protect_class=21 [1] which is for areas protected for religious reasons.
This along with an appropriate natural tag like
