English language required for AN

Dear Experts/Members,

Need to submit proof for english language requirements.
1. Used my Degree certificate + University letter + NARIC certificates in ILR(Red route).
2. Used my Degree certificate and PBS calculator during initial Tier 1 extensions.

Now for citizenship,

Degree certificate + NARIC certificates (Red route) as per the checklist.
Do we need to upload university letter confirming degree was taught in enlish or Degree certificate + NARIC is sufficient.

As per the checklist, only certificate + NARIC letters is enought, It does not talk about letter from university as it was in ILR.
Awaiting for your opinions.
Regards,

If your ILR was granted after 2013, your already satisfy the requirements for English language. Provide the evidence if asked but it shouldn't be a deal breaker

Thank you very much for the response.
Yes, ILR in 2016...
For citizenship,as per the checklist it is Degree certificate+NARIC (Red route).

I had submitted Universoty letter also as per the ILR requirement. I did not want to submit any extra docs other than on the checklist so was confirming.

So Degree certificate + NARIC (Red route) will submit.

I did not know that ILR after 2013 means enlish language is already satisfied. I am not sure why they ask for same documents again in citizenship..

Thanks for your time. Much appreciated!!!!