There are two issues here.
One is making it possible for people to search for the book on the site where its been uploaded. I don't know how the search engine (say on Amazon) will retrieve the book from its database if the title and author are meta tagged in Bangla. Or maybe the search engine uses the actual filename of the epub; that would be Bangla written in Latin script. I don't have any idea about this whatsoever.
The second is that once someone has loaded the epub onto their reader, they should be able to search for the book by title or author. That is not possible if the title and author are coded in Bangla script. (Already tried that).
Furthermore, in iBooks the name of the author is displayed at the top of the right side page while the title is displayed on top of the left side page on every page of the actual text. This will display in Bangla script if it is written in Bangla in the meta tag. However, you can no longer use the search function to find the book, either by title or by author. It simply doesn't come up in the results.
It looks like I'll have to write the meta tags in Bangla using the Latin script. Which is such a pity because I'm mildly obsessive and I really think that if its a Bangla book, everything that I see on the screen of my ereader should be in Bangla. Nevertheless, unless someone has a brilliant workaround for this, I'm stuck with using the Latin script.
Thanks for the explanation, Jellby...don't need to google it after all!
