I have checked some previous emails my friends got for passport request, their emails seem to mention just the UCI of principal applicant and file number.
I have spoken to VFS people, under the new system where VFS centers are closed, there is a separate two-way transmission email for pickup/drop of passport.
I have been sent only one two-way transmission email mentioning my wife's UCI. This is why VFS is not willing to take in passports of my kids.
In the passport request email, I find this -
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2) Photographs
Please provide two (2) recent photographs along with your passports for yourself and each accompanying dependent. For instructions on photo requirements and specifications, see:
http://www.cic.gc.ca/english/information/applications/guides/pdf/5445EB-e.pdf
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I suppose this means we need to send passports of dependents as well?
I did get separate medical examination request emails mentioning UCI of each member in the application, would it be the same with passport requests too?