TRANSLATION of documentation into a new language (HINDI)

Hi, I'm interested in translating PHP documentation in HINDI ( one of the 22 languages of BHARAT aka INDIA https://en.wikipedia.org/wiki/Languages_of_India#Hindi ) . I can see that there is not translation group for my language. Hence, I would like to know the procedure to start one. Also, as per the language mailing list naming rule the mailing list must have the country name in doc-{LANG}@lists.php.net format in place of {LANG} However, in my case one language can't represent the country. As you may see from this wiki article ( https://en.wikipedia.org/wiki/Languages_of_India#Scheduled_languages ) my country speaks a multitude of languages and thus using the code 'in' for the mail list will be unfair for other languages ( even though they may not be wanting a to translate PHP in their language, but still all future cases must be taken into account ). So, kindly provide me the procedure to initiate a language group for HINDI in a way that i may use the iso code for hindi ( 'hi' ) instead of using 'in' in the mailing list. Thank You. Akash Kumar Sharma http://panchtatvam.com