I can understand your view regarding NDVO as i my file is also in NDVO... Lets wait for them to pickup nov files... From there only we can expect some movement!!
Then the visa officer might ask questions or have concern related to those documents. For ex, if original employment documents are requested, then eligibility might be verified during interview. Were you under review required earlier?
True... It is a bit odd that mine transferred earlier. Maybe your initial eligibility check has been done in Canada and the remaining part will be done by NDVO.
Well if NDVO has requested your passport then your application is approved definitely. You mentioned that you received call from NDVO, did they specify anything about approval?
If the email was regarding your PR application being approved, then normally the email subject is "READY FOR VISA". Did the content of email specified that your applicantion is approved? If yes, then no need to worry!!
Similar situation as yours. Aor 30th Dec: medical pass 12th Feb: raised CSE on 1st March and got to know file transferred to NDVO.
In regards to eligibility being verified at NDVO, if your application is transferred closer to MEP then i guess the entire eligibility check will be done by NDVO...