I know nothing about Bangali, and I cannot find the font you mentioned. But I managed to get an alternative font for recreating the problem:"Bengali-Progoty. TTF" (which, unfortunately, is not a bit similar to yours).
You can get the font here: Bengali-Progoty. TTF .
I think it may be better for you to implement your own Virtual keyboard. There is a sample in the LWUIT developer guide and demo. I am sure if you invest time in that it will come in handy later on.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.