You may order the Bengali correspondence courses from Emmaus.
ECS (Emmaus Correspondence School) Ministries
http://www.ecsministries.org/
http://www.ecsministries.org/languages

You may order the Bengali correspondence courses from Child Evangelism Fellowship in Los Angeles.
Child Evangelism Fellowship in Los Angeles
http://ceflosangeles.com/ministries/mailbox-club/index.html
http://ceflosangeles.com

Emmaus India https://emmausindia.in

If you want to see if there is a Source of Light Bible Correspondence Course ministry in your country and in your language, please go to this website link and search.
https://www.sourcelight.org/explore/regions/

SIM - Serving in Mission
https://www.sim.ca/bangladesh-bible-correspondence-school/
Bangladesh Bible Correspondence School



Bible Correspondence Courses

http://biblecorrespondencecourses.org/
https://www.facebook.com/Bible-Correspondence-Courses-844092292423763/

If you have any questions or need help finding a particular video, tract, book or any other Christian resource in any language of the world, please contact  brianformissions@gmail.com