Genuine advice needed. I have 2 years gap after graduation because I was preparing for GATE exam and

Genuine advice needed. I have 2 years gap after graduation because I was preparing for GATE exam and giving interviews for jobs. I got admitted to a Canadian university and I will apply for visa now. I know that this gap needs to be justified, so I got an experience letter from a relative's company (no salary slips or income tax returns). I've also been doing 2-3 online courses. Is it possible to get through visa process by showing this experience letter and course certificates?