Mine is four weeks and still no answer In case anyone finds this thread and has the same query. It took almost exactly 4 weeks.
I received my PPR on 6th September,
Sent passport on 8th September,
VFS confirmed Reciept on 11th September.
My CIC application approved notification received on 3rd October.
VFS notified that the passport was on its way I believe on the 4th
COPR and passport received back on 6th October.
... All the best to Anyone still going through this process.