Referees signture in passport application

[Ahmedali29]

Hi guys,
just a quick question please, I am applying for my naturalization and passport in 6 weeks time through NCS. So I am filling in the NA form at the moment and meanwhile looking at the passport application. In their structure for the passport, they stated that “You do not need to complete section 10 nor have the 2 photographs certified. Details of referees will be collected as part of the citizenship application”.
1- Does that mean I Just need to ask my referees to sign in the NA form only?
2- If so, do I leave section 10 in passport application empty (countersignatory) as details of referees will be collected as part of the citizenship application?
3- My referees will be my PhD supervisors and their position is just lectures in business at university? Would that be okay?
4- If so, is it okay to have it signed it now while my appointment will be in 6 weeks time?
5- Final question, Section 4: it states that Grandparents' details are not required, I cannot find it in the form, I only found parents' details, do I fill this or do they talk about something else?

Thank you for your help in advance.

[CR001]

1- Does that mean I Just need to ask my referees to sign in the NA form only?
2- If so, do I leave section 10 in passport application empty (countersignatory) as details of referees will be collected as part of the citizenship application?

Yes to both.

3- My referees will be my PhD supervisors and their position is just lectures in business at university? Would that be okay?

Should be fine yes.

4- If so, is it okay to have it signed it now while my appointment will be in 6 weeks time?

Yes

5- Final question, Section 4: it states that Grandparents' details are not required, I cannot find it in the form, I only found parents' details, do I fill this or do they talk about something else?

Parents yes, grandparents no.

[Ahmedali29]

1- Does that mean I Just need to ask my referees to sign in the NA form only?
2- If so, do I leave section 10 in passport application empty (countersignatory) as details of referees will be collected as part of the citizenship application?

Yes to both.

3- My referees will be my PhD supervisors and their position is just lectures in business at university? Would that be okay?

Should be fine yes.

4- If so, is it okay to have it signed it now while my appointment will be in 6 weeks time?

Yes

5- Final question, Section 4: it states that Grandparents' details are not required, I cannot find it in the form, I only found parents' details, do I fill this or do they talk about something else?

Parents yes, grandparents no.

Fabulous response CR001. I much appreciate it. Thank you.