Who wrote the first Ramayana in Kosli language?
There is a discussion going on who is the Balmiki of Kosli literature. In this context, the following news reports suggests that both Indramani Sahu and Hemachandra Acharya have written Ramayanas in Kosli language.
So, it seems that the Kosli Balmiki title is not confined to a particular person. And there are many Balmikis in Kosli literature.