@ PS_gocan, you have to send PCC, proof of RPRF, if asked some Canadian standard photos, acknowledgement of Medical done and Passport together..... it is not rule, but it will help you to track document upto NDVO. As per your request from NDVO, they have already asked you for Passport, hence you have to send it. As per me you will not receive any further request for PASSPORT.
As I have not received any MR request, PCC request, PPR request, RPRF request. I am putting my view point which should be verified.
Regards