Hi,
Take an appointment on PSK website. List of documents are available on the site which you would need to carry on the day of appointment. If your current address is different from the address mentioned in your passport, there would be a police verification conducted. Otherwise you may get the PCC on the same day of the PSK appointment. If a police verification is required, expect to get a call/sms from police station in 2/3 weeks post your appointment (from police station tagged for your current address). You would need to carry few documents (current address proof, Id proof etc, list you would get in the sms) to police station on the day/slot given to you in call/msg from local police station. you would also need to give details of past addresses during your visit to Police station. Once you submit documents to Police station, it takes another ~2 weeks to clear your request, and you would get a sms from PSK (you need to subscribe for SMS service during your appointment to PSK) mentioning the date on which you can collect the PCC from PSK. On the given day, you would need to again go to the PSK for PCC collection. Entire process takes 3-5 weeks. Wish you good luck!