Books can be attributed to "Anonymous" for several reasons:
* They are officially published under that name * They are traditional stories not attributed to a specific author * They are religious texts not generally attributed to a specific author
Books whose authorship is merely uncertain should be attributed to Unknown.
This is the first complete catholic bible published in Malayalam but unfortunately, there some mistakes in the translation, sometimes even changing what it really meant quite differently.
Hopefully the revised translation from P.O.C does a better job.