akhil said:
I maintained my PR status but now out of Canada for about 2 years,
So you have maintained your PR status and your residency obligation will not lapse once your wife becomes a citizen. So you will be a PR as long as you live with your wife.
akhil said:
PR card expiring in Sept. Can you please point to some links/docs on how to maintain PR status and what proofs I need to keep and any obligations?
Google for the PR card renewal form and look through it. There is information on there about what info they need for PRs living with a Canadian citizens spouse outside of Canada. From memory, I don't believe they ask for proof on the form, but even if they don't, they may ask for it later in the renewal process or if they have doubts. So, marriage certificate, wife's citizenship proof, and any proof that you are living with your wife (mortgage or rental docs with both names on it, utility bills, etc). I don't believe there is an exhaustive list of "perfect proof" anywhere, but please do let us know what you find out in your research.
akhil said:
Do I need to renew my PR card?
I personally would recommend that you renew your PR card as having a current PR card makes it easier to enter Canada with minimal worry. But do you need to renew it? No. As others have said, PR and PR cards are not the same thing. But having a PR card means that officials will give you the benefit of the doubt that you are a current PR and haven't run afoul of the residency obligations. Without a PR card, few Canadian officials will give you that benefit of the doubt since you are living outside of Canada.
Do you want to come back to Canada at any point or for any reason? Temporarily or otherwise? If yes, I recommend renewing your PR card.