About [[MediaWiki:Narayam-ta-99/hi]]
What about messages like MediaWiki:Narayam-he-standard-2011-extonly/hi ? Using formatnum caused a comma in between and using formatnum with r parameter caused it to go back to arabic numerals.
Solution?
The formatnum magic word does not expose the ability to avoid adding thousand separators (MW itself can do it). There is no fix for this, except the very ugly workaround of using formatnum twice with two numbers each time.
Any potential problems with/opposition to being "very ugly" if required?
Why use formatnum *at all* in these cases? It's static text. Format the number however you like.
It's explained in the first comment. The local numbering system is not universally used and the number transliteration could potentially be turned off in some wikies but not in others. I don't know if that is done in practice.
In practice:
- hi-wikt: devanagari numerals http://hi.wiktionary.org
- hi-wp: arabic numerals http://hi.wikipedia.org
You need more/other examples?