The important thing is to convince them that your relationship is genuine. You have to prove that your marriage is just like a marriage that would be done if you were both staying in Pakistan, that it's not a "fake" marriage only done so your wife can come to Canada. They have to be sure that it is not a "marriage of convenience" done so she can get into Canada, where you don't intend to stay married after she becomes a permanent resident. The new rule that the PR is not really permanent until you have been married two years is probably in your favour.
maryam mujtaba said:
... u r not lying about ur relationship, its genuine according to Islam but canadians dnt understand...
It doesn't matter if "Canadians don't understand." That is the reason that the processing is done in Pakistan and not in Canada. The people in Pakistan know what is a genuine marriage in Pakistan and what is not a genuine marriage in Pakistan, and it is those people that you have to provide the evidence to.
I can't emphasize enough that you must not lie about anything. If they find you lying about anything, your wife could be barred fro entering Canada for up to 5 years. I certainly think that your 30-person event in the hotel was a reception, so you can call it a reception with no problem. Just don't say you did a Rukhsati when you didn't.
I don't know a lot about what is customary in Pakistan but the officers there do know. I said that it has to be like any normal wedding in Pakistan, but obviously there are some things that are a little different, because you are not living in Pakistan, right? So, she can't really come to your place until she comes to Canada, but that doesn't really mean you are not married or that the marriage ceremonies will not be completed. I do understand your concern, but I think if you explain the circumstances honestly, everything should be fine.