Medical checkup

Can anyone let me know when to submit the medical reports for Oman employment visa. Currently I have got the offer and my certificate attested/apostille has been submitted to employer. Now please let me know when to undergo for medical check up. Is it before visa and or after visa.

Appreciate your kind reply

You can get the visa only if u provide them the medical tests done..Itbis before visa..hopenu have done it and  received the visa.Best wishes