I randomly booked my slot on Nov 21, at 7:45 PM on my 2nd or 3rd try.Lucky you were able to get the appointment at Delhi center. any tips ??
Have you tried calling VFS? Some people went there without an appointment, I think they were students. They were discussing something with the officials, but before I could ask them, I had to go in for my turn.
I also read a comment on Kubeir Kamal's group that you can pay 3100 at VFS for premium service and get biometrics done on the same day. Not sure if its legit, but worth a shot. I'll try to find a link to that comment and post it here.