vishnu, asking for PCC means someone is working on your file which is good sign... feb applicants haven't started receiving ppr which shows nowadays cpp ottawa is slow. Also, we need to consider that summer is gonna end soon so everyone is going on vacation, it may be the case your IO is on vacation.. don't worry, give it sometime, it will be in process.
Also, when you got request for pcc, was it from CIo sydney or ottawa? Did they ask you to attention it to someone, i mean it cud be three letters code..
I received email from CIO sydney yesterday, asking to send background declaration again, as there was three months lag. Send it yesterday, lets what happens next !!
Good luck guys ! Patience is the key ~