You can submit your passports, PPR print out, VFS consent form, courier consent form and 2 photographs ( as per IRCC specs ) along with fees (1087 INR per person) at any VFS office. All passports eventually goto Delhi for stamping.
The Bluedart courier will either be delivered at the address you specify in the courier consent form or at the Bluedart office address ( mentioned on the receipt you get from VFS) if your address is not covered by Bluedart delivery. VFS guys will ask you before hand where you want the said delivery and take your word as final.
Nothing to panic or worry about. Carry your passport, 2 photographs and the printout of the PPR mail. For everything else ( print outs, photocopies, photographs etc )VFS will provide you help and assistance.