Any Idea anyone ? My passport is going to expire in 8 months, so can I renew my passport after I submit my PR application ?
As per process, your PCC is issued against your Passport Number.
1. If you have not submitted your PR application yet, the PCC kind of becomes invalid as you are submitting the PCC on old Passport # and then you renewed passport.
2. If you send your current PCC and current Passport and if while making decision your passport is valid for less than 6 months. They will ask you to apply for new passport and send the scans/prints. (My wife's passport was requested for the same scenario)
If you have time, try not to complicate/delay your case. It certainly will be extra effort and money but worth your peace of mind.
If I were you, I would apply for new passport (in tatkaal) if you are in hurry. And then apply for the PCC on that new passport#. Only then submit your PR Application.