Do I have to take English Language test?

[tapash]

Before I arrived in UK on student visa in 2005, I took IELTS test and got 5.5 average.
I will soon apply for British Citizenship. Would I be exempted from English Language test? I know IELTS is valid for 2 years, but https://www.gov.uk/english-language/app ... ifications says

Applying to settle in the UK
You can use a B1 level qualification that’s run out if both of the following are true:

• it’s on the current list of recognised tests
  it was accepted for another UK immigration application, eg when you got permission to enter

Any suggestion would be much appreciated.

[CR001]

It needs to be level B1 AND be on the current approved HO test provider list.

Presumably if you were a student, you have a UK degree????

[tapash]

Thanks. I haven't finished my studies.