Please create a new namespace "লেখক" which is the same as "Author" in English Wikisource.
What should we use as the name of the discussion namespace for the "লেখক" namespace?
The discussion namespace for the "লেখক" namespace sould be "লেখক আলাপ".
'bnwikisource' => array(
100 => 'লেখক',
101 => 'লেখক_আলাপ',