Login here and update your address.can anyone please explain "how to change address on-line" or do I have to send the update via mail ? I have IRCC account but I don't see any option to upload any document, thanks.
https://services3.cic.gc.ca/ecas/introduction.do?app=null
If you are updating parents' address, then send an email to your visa office along with explanation and copies of new passports reflecting new address.
You can also submit this address change request along with new passports via Web Form.