Thanks for your question.
What's your current status? How are you permitted to reside in the Country at the moment? Do you have a VISA
Yes, you have to apply for naturalisation using form AN and this will include having to take the citizenship ceremony as part of the process, swearing allegiance to the Queen. Once you have been through this process you can apply for your passport straight away to the United Kingdom Passport Agency.
Obtaining naturalisation will be highly unlikely to be difficult for you having been here for the length of time you have, but you still need to do it in order to apply for and receive a UK passport.
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