an adult's OCI can not be picked up by someone else. these are specific instructions BLS (Brampton and Toronto) wants you to acknowledge when you opt for counter pick up.BLS is not authorized to keep Canadian govt issued documents. However they would need to see the original passports
(iND and CAN) and other documents (Marriage/Citizenship/Utility etc) of the applicant is using to support his application
When you submit you request for courier or you can also pick up the OCI on behalf of your spouse (authorization and original payment receipt will be required)