How to change Apple ID's Country/Region from USA to 'Bangladesh' ?
Not getting in the top down list . Screen shoot below 
Not getting in the top down list . Screen shoot below 
Hi Daudjcc,
Welcome to Apple Support Communities. We understand you're unable to select, Bangladesh when you attempt to change the country for an Apple ID. We'll be happy to help.
Have you tried using another device or have visited the website for the Apple ID account page? If not, let's give that a try by following the steps outlined here: Change your Apple ID country or region
Kind regards.
Apple doesn't have an App Store/iTunes in your country.
How to change Apple ID's Country/Region from USA to 'Bangladesh' ?