Are you going to apply for close work permit?
If NO, then you can apply now, hopefully you will get before 1st December. In case it gets delayed, use one of your friends mailing address and tell him to courier it in India after receiving from CIC, and then you can apply for VISA from India.
If YES, are you waiting for your employer for any letter or something? how long it will take to get?
Worst case, do you have VISA until 1st December? If yes, go India and come back before 1st December and apply for work permit before 1st December. Border officer might ask you, your WP is expiring soon, why are coming...
Just guessing your scenario and trying to answer at my level. Hope that helps...
Thank you
I am applying for closed work permit
you are saying i can apply visa in india . right ?