Yesterday I developed a plug in for wordpress users. Using this plug in you can display all the dates for your posts and comments in Bengali. So download the plug in from the following link, place it in plugins folder and enable it from “plugins” menu in wordpress administration panel. You are done.

I have released under Ekushey. Thanks to Omi Azad for the work.
http://www.ekushey.org/?page/Bangla_Date_Plugin_for_Wordpress

The project was inspired by Humayun bhai from e-Kobi