When my husband extended his passport
I called the call centre here n they told me that if the India office has not asked for the passport yet then I should email the scanned copy of the passport to the Mississauga office where we initially submitted our application. and within a month when I ordered my notes I saw that the Mississauga office forwarded the email to India
Or you can also call your mp or the call centre here to confirm what to do
Cuz my mp told me that I should send them the copy myself and I didn't want to contact the India office cuz I was not sure if they will even open or respond to my email
That's why I thought emailing the Mississauga office is a better option
Hope it helps