You need to get divorced before you can sponsor your boyfriend, whom you’ll have to marry.
Questions and Answers Archive
He must use the General Application because it’s his first passport.
Because your girlfriend is British, she’s probably fine as long as she has a valid ETA. However, if you accompanied her, it would be better, as they are much more likely to look favourably upon a couple that is vacationing together.
It does not matter where you get married in Canada; it’s the same process pretty much everywhere.
You need different documents to marry and to be sponsored. For marriage, see this page. Once married, your new husband will have to submit a sponsorship application. There is more information on this page but you can get more details about spousal sponsorship here.
To help answer your question we need more information than that. If you are going to be allowed to sear the Oath of Citizenship, you either passed your citizenship test or were exempt from taking/ineligible to take the test and took it by mistake.
Yes, it’s okay
As long as you have your PR Card as well, you can travel to Montreal from India.
This is pretty standard practice. You do not need to worry. You can renew your PR Card when it is about to expire.
Your PR status shouldn’t be conditional. As long as you comply with the residence requirement there should be no issues. Just renew your PR card when it expires.