Hi Gurung
If your IELTS is expired you need to take another equivalent English test for your naturalisation purpose. See the additional text from English requirement from Home Office website.
If you have a qualification that was taught or researched in English you can meet the English language part of the Knowledge of Language and Life requirement and will not need to show a formal speaking and listening qualification. You can meet this part of the requirement if your qualification:
- is deemed by UK NARIC to meet the recognised standard of a Bachelor's or Master's degree or PhD in the UK, or
- was taught or researched in an English speaking country other than Canada.
You will need to send your certificate as evidence of your qualification.
Hope this will help. Cheers. Maruf