I've submitted my Surrender +OCI application at BLS Brampton. Walk-in.
Reached BLS at 6:30 AM, was the first in line. By 7:30 AM, there were around 10 people waiting. By 8:00 AM, there were like 15 people waiting.
I was called in around 8:10 AM which is when they started. The agent checked my application forms and she returned so many pages back (she returned both OCI and Surrender checklists, copy of COPR etc) and mentioned it was not necessary to submit those documents.
Everything was done in 10 minutes and I walked out around 8:20 AM. Pretty smooth experience.
I had some confusion about where to paste the photo on the OCI application form and I went ahead and pasted it over the digital photo on the OCI application and it was accepted without issues.
Special thanks to
@sg02 @sydcarton @cnonline @amyn27 for their posts and updates and for demystifying the process.