Hello WordPress, I’m a Local…

Hello WordPress,
I’m a Local translator and WordPress Community member from Nepal and there are many languages are spoken in Nepal like Nepali, Mathli, Bhojpuri more. the WordPress in already translating in Nepali language but not in bhojpuri language that is difficult to use for bhojpuri language user so i would like to translate or contribute to a new local language bhojpuri.
so how can i get start for it and from how i can get access for it.