The following thread may be useful for applicants in India who received PPR and have to deal with VFS:Can u guide on how to prepare package for couriers.i mean both passport in one envolope or different envolope for each,as PPR is addressed to my father n doesn't contain name or UCI for my mother.also they asked abt height n colour of eye's where to mention it.
Thnx
https://www.canadavisa.com/canada-immigration-discussion-board/threads/two-way-courier-services-vfs-new-delhi-india.713205/page-246
You can mention eye color and height in the backside of the photos.