Visa issue

Hi ,
What is block visa ?
My MOFA number is generated and also GAMCA medical is fit and report is submitted . But after submission passport for Stamping after few days agency says visa is expire .

I can't understand what exactly .
Plz help me

Maybe the visa that your company issued got expired. Every visa has a validity within which it should be stamped, else the visa is expired and the company has to re-apply and re-issue the visa again.

Hope this helps!