I am sure my HR deptt. won't issue such letter as long as I am in the job, but I can certainly get reference letters from my immediate supervisor.First you need to check with HR dept if they will provide letter as per IRCC's format. If yes, you are good to go. Else, you would've to go for alternate route. Check yourself first. Then and then we can decide on way forward.
Do I need to get this letter from my supervisor on Letter Head or on plain paper ?