2017-04-05 15:38 GMT+03:00 MF-Warburg <mfwarburg@googlemail.com>:
I also contacted the main contributor of the test-wiki to ask for his opinion.

Did he reply?

Since this discussion, I found some more confusion:
* CLDR says "बड़ो", like the ULS language database file. (That may be the source.)
* A linguist friend on Twitter said its "बर'", as most people here suggest, and I trust him, but I asked for a written source.