As soon as you submit the quiz u will get the mail... May be if you get shortlisted otherwise i don't know

Ty for your response. Do they confirm if I'm selected or not selected by mail?

No they don't tell that... Its an automated mail which only says.. "u've been shortlisted, our HR team will contact you in 7-8 business days".

I mean do I get any email confirmation if I'm not selected like "Sorry to inform you that you're not selected" ?

They will let you know if you're selected. If rejected, they might or might not reply. But If you're selected you'll receive a mail as soon as you complete the test. I hope it helped. :)

Thank you so much