I got it done from Police Commissioner's office, as well as PSK (Bangalore).
The one that Police Commissioner's office gives has ur address, date from when u are living at that address, reason for applying for the PCC etc... Due to some issues with those dates, my consultant suggested me to get a new one from PSK.
I applied at PSK on 21st Oct, and got it on 25th.
You will be contacted by your local police station. They will either visit you at your address or they will ask you to go to the police station. Either ways, just request them to process it fast, provide all the documents that they ask you to (along with photographs). If they do their part of the job promptly, the rest of the process is very smooth.
Hope this helps.