What is the process?

[kirk]

So my grandpa is very old, and my grandma passed away 2 years ago. My uncle lives in another country, and there is no family behind to take care of him. My mom wants him to come to us here in Canada. He currently lives in India. My mom is confused between super visa and vistor visa. Which one has a greater chance of him coming here? Which one takes the least time? What is the process?