just email them about your situation..i got DM and pre- arrival on nov 17 and i emailed delhi immigration on tuesday and they sent me ppr request in reply on thursday. delhi-im-enquiry@international.gc.ca
application recieved -17 april
AOR1 -24 may
medical request- june 1
sponsor approval- june 6
medical passed -june 9
file transfer to NDVO(AOR2) -june 26
background check- august 24
DM and pre- arrival november 17
PPR -november 29