Bengali Restaurant in LA?
I don't know any of the establishments by names, unfortunately, but there is sort of a Bengali district around Beverly west of Vermont. If you drive around, you'll see stores decorated with the telltale Bangladesh flag - one has it painted all along its whole side. These Bengali shops are nestled amongst the Koreatown stores and Salvadorean restaurants, and many will sell food, but someome at one may be able to direct you to a restaurant.
I think there was one further east on Beverly about halfway between Lowenbrou Keller and Tommy's called Greenfields, but I'm pretty sure it closed.