I was in the same situation last week. The status remained "PCC application is under review at Passport Seva Kendra" for over 10 days. So I called up the same person from Local Police Office (who called me) to check whether he submitted the police verification. He said he sent it to the Commissioner's office and he assured he will go and check there. Next day, I followed up and he said the officials at Commissioner's office did not upload and then he went again to get uploaded on Thursday. Today, my status got changed to "PCC needs to be collected from the Regional Passport Office".
If you have the Police Constable or any official's phone number, see if you can call them.