On Bangladesh National Budget 2019-20 Prime Minister Sheikh Hasina declared that they will work with Blockchain Technology. It's a good news for all cryptocurrency user in BD. We can hope that the government will legal and accept BTC very soon.
Source: https://youtu.be/GtHLk5dt1IM
It should be noted that, police arrested 3 cryptocurrency dealer for their alleged involvement in cryptocurrency on 23 April 2019 because they were related to some SCAMS.
Source: https://www.thedailystar.net/country/news/three-cryptocurrency-dealers-held-bogura-db-habiganj-laxmipur-1735174?amp
I think it's a positive news from the Government of Bangladesh