I came across this post which have helped a lot of people to link their application online:
Go to
Cic Website
Select *English*
Select *My Application*
Select *Check Ur Application Status*
Answer *Study Permit* fr d question what did u apply for?
Scrol down and select
*Link Ur Paper Application to Ur Online Account*
Scroll down and Select
*Continue to Gc Key*
Select *Sign Up* if u don't have an Account
Or Give ur credentials and *Sign in*
After reaching ur Home page by answering security questions, accepting their terms and conditions
Scroll down
Now select *Link Already Existing Application*
In d Drop down List select
*Temporary Residence* nd a drop down list will appear der select *Study Permit and Extension*
Now in d next set of drop down list box der will be 4 options wer we don't know our Application no and our UCI so we can't select 1 2 4
Select *3rd Option* dey won't ask d Application no here
D Application no field will go away and instead dey ll ask u to fill
*Family Name*
*Given Name*
*Place of Birth*
*Passport No*
*Passport issue date and Valid till date*
*Ur programme start date and end date*
*DLI*
All dese things u need to give it as it is from dat Validated Bar code form
D place of birth thingy is case sensitive
Give d exact thing from d Bar code form
Better to copy paste dis