Correction in surname before naturalisation

[nmm]

Hi,

I want to make some corrections to my children & wife surname before submitting naturalisation application. For example my name is Ali Ahmad Khan, so Khan is my surname, my wife name is Farah Ali which should be Farah Khan or Farah Ali Khan, similarly my son name is Babur Ali but it should be Babur Khan or Babur Ali Khan.

Could some friend please guide me:

1. Is it better to do this change before naturalisation application or to do it after natualisation and before passport application?
2. Which change is more easy to do? replacing the surname or addition of surname with the current name ?
3. Do I need deed poll if I add or replace their surname? Do I need deed poll separately for everyone or one deed poll can be used for whole family?
4. What else is required for this change?

Thanks a lot

[nmm]

Could anyone please reply to this thread? Thanks

[Amber]

Please continue in your other thread.