Hi Toshit1990,Hi ssk1234:
At VAC you need 3 documents: BIL letter (print from your ircc account), Appointment Letter (you will receive when you book an appointment) and your original passport.
They will scan the barcode on the BIL when you visit VAC for biometrics. Your records will then be automatically linked to your IRCC account. You will even see those reflected on your IRCC account in 2 hours.
All the best, let me know if you need any other info.
Thanks for the info. I have rescheduled my appointment for 17th Feb at SF VAC.