This article describes the development of an open-source morphological analyser for Bengali Language using 􏰁nitestate technology. First we discuss the challenges of creating a morphological analyser for a highly in􏰂ectional language like Bengali and then propose a solution to that using lttoolbox, an open-source 􏰁nite-state toolkit. We then evaluate the performance of our developed system and propose ways of improving it further.