Bengali-speaking Muslim brothers and sisters all over the world can educate the Qur'an effectively in an extremely quick time. At your ask for for a long period, we are grateful to Allah Ta'ala for publishing the Quran training book in the shape of an application in the Noorani system - https://sociallweb.com/story3727748/new-step-by-step-map-for-quran-shikkha