Hi

Can anyone advice please regarding dual citizenship. My question is:

I recently got British passport. I am originally Bangladeshi.

Do I need do get any document or letter from home office or from Bangladesh embassy for dual citizenship?

Can I carry or use both passport ?

Thanks

http://www.bangladeshhighcommission.org.uk/consular/  . Select the 'download forms' button.

However, the London website didn't have much background information about it. I found the relevant rules on the websites for the Bangladeshi High Commissions in the United States and Russia. Read these, and it will tell you all you need to know; they're for dual US/Bangladesh and Russian/Bangladesh citizens; but the same principles should apply:
http://www.bangladeshembassy.ru/en/page56.phtml
http://www.bdcgla.org/dual_nationality.htm

Good luck. Hope this helps.
Best wishes,
Will