Hi it’s Rabia I have question regarding HNC ground for parents . We r 3 siblings 1 in Middle East and we r 2 here and we r Canadian citizen . My parents are alone in back home they don’t have any family support back home and no one there to take care of them and have valid visit visa also came to Canada before 4 times . Is there any chance if we can apply for them through HnC ground ?
You can certainly try. I would say your case is not on the strong side and it's hard for any of us to say if you will be approved or refused.
Your case would be much stronger if all siblings were living in Canada and there was no sibling living in a country other than Canada. The fact your parents have been traveling in and out of Canada also seems to show they are independent and able to travel and able to live independently.
Having said that, you can certainly try applying. You should keep the following in mind... The processing will likely take 2 years, your parents should not leave Canada at all during this time, they will have no health care coverage while they wait, and if they are refused, they may have trouble returning to Canada as visitors in the future.