Once they acknowledge your application as complete you can track it on the BLS website. They will send the application to CGI toronto which takes 1-2 days in theory. After that point you can track your application on passport seva website where you created your PCC request. I got an email when they initiated the police request. Not sure if the procedure is same in all cities but my parents had to go to the police station with their Aadhaar card and stuff. Takes a week or two for them to approve it from their end and send a "clear" status to CGI toronto. The last update would be of your PCC being printed, after which they send that to BLS. lastly BLS will send it via purolator and provide you with the tracking number on their website