The people here are missing the guy's point, Bangladesh does not need to develop its own nuclear weapons, for Bangladesh to have nuclear weapons as a deterrent.
There is something called Nuclear Weapons Sharing.
en.wikipedia.org
NATO currently has 5 Nuclear States(TURKEY, ITALY, GERMANY, NETHERLANDS, AND BELGIUM) that did not build their own Nuclear weapons, but have Nuclear weapons in their countries placed and even have their air forces trained for dropping nuclear weapons as part of joint operations with the United States.
Similarly Belarus is in the process of acquiring Nuclear Weapons and having their air force pilots trained to deploy them, if need be.
Saudi Arabia has been alleged to have a similar clandestine agreement for warheads with Pakistan.
This is the sort of arrangement the man is referring to, either that or Pakistan strategic forces with Nuclear weapons being deployed to Bangladesh.
Not actually making your own reactors and plutonium and building the bombs etc etc.