Visit Visa Stamping

Hi

I got visit visa for my family issued on 18th May 2016 (11 Shaban 1437). I heard withing three months of issue we can submit for visa stamping in Saudi Embassy in India. If it is true, after Visa stamping on passport is done, within how many days family can enter into saudi arabia (in other words they can travel to saudi arabia)?

Please do let me know as early as possible.

Jazakallahu khairan
-Aijaz

30 days