It's clear that an applicant can only add one spouse in immigration application and can sponsor second spouse after 3 years of divorce to first spouse.
1. If I add my first spouse in my application and got immigration, can my second wife apply immigration separately as a new independent applicant on her behalf? And can she show her relationship with me and get points of my education? ( she has her sister in Canada so she can get relationship points on her behalf)
2. If a Pakistani girl already living in Canada as student or permanent resident and I go for my second marriage with her in Pakistan what will be the status of our relationship in Canada (on passports, citizenship card etc...) and what will be the status of our children in Canada?
3. If I marry with my second wife in Pakistan can I sponsor my children from second wife in Pakistan to Canada?
Canadian law does not allow two spouses at the same time. However you can sponsor second spouse after 3 years of first one. but you have to divorce the first one (See point # 2)
Relationships that are not eligible
You cannot be sponsored as a spouse, a common-law partner or a conjugal partner if:
1- you are under 16 years of age
2- you (or your sponsor) were married to someone else at the time of your marriage
3-you have lived apart from your sponsor for at least one year and either you (or your sponsor) are the common-law or conjugal partner of another person
4-your sponsor immigrated to Canada and, at the time they applied for permanent residence, you were a family member who should have been examined to see if you met immigration requirements, but you were not examined or
5- your sponsor previously sponsored another spouse, common-law partner or conjugal partner, and three years have not passed since that person became a permanent resident.