Fajj YG

i’ve bought the student own group insurance in my home country, do i need to purchase insurance again in malaysia? the insurance company told me that the insurance that i have purchaesd can cover me well in malaysia as it contains the policy required by the malaysian government.

is it okay if i overstay in malaysia for 3 days?

Do I need to do pre-med check up in my home country for visa processing purpose since it is not required by the host institution? They only require a post med check up.