Hi Nav23,
I noticed your scenario is very similar to my wife's situation.
I am the principal applicant, and I live in Canada. My wife lives in India and I requested for changing her Visa office to India. After about 3 weeks, I got a reply saying to send both mine and my wife's passports to Delhi. But I specifically mentioned that only my wife is in India.
My question is did your spouse also get a similar email asking to send both of your documents to Delhi, even though he is in Canada? I wonder whether this is a general email that is sent for visa office change regardless of whether just one of us or both of us require a change in location for visa stamping. Kindly let me know.
Thanks!