Nope u will not require any IELTS...
Besides, ur frnds are right,,,,After getting UCI u will inform ur local Visa office by submitting below docs:
U have to submit below docs/forms:
Forms:
1. Cover Letter stating ur changes
2. Generic App form- Principal applicant
3. Schedule A - Background declaration -spouse
4. Additional Family info- Spouse
5. Supplementary -Travels- Principal applicant
6. Fee payment
7. Doc checklist
DOCUMENTS
1. Photo-6 copy with 5 copy written name
2. 550 CAD
3. Birth Certificate
4. Passport- Spouse
5. Marriage Certificate
6. Nikahnama (English ver)
7.Settlement fund ( CAD: $14,720 for two person)-Bank cert+Statement
http://www.cic.gc.ca/english/immigrate/skilled/funds.asp
8. Police clearance certificate-Spouse
9. All educational docs- spouse (though checklist does not indicate those but recently SGVO asking this to several applicant)
Courier those hard copy docs to Local Visa office address...