Clarify on visa

Helloo,
one of my technician went on vacation to Pakistan and met with an accident and doctors adviced him bed rest , according to the exit reentry visa As per the copy of visa it says visa issued 01/09/2014(06/11/1435) and return before 02/12/2014(10/02/1436) also in visa duration it says 92 days from departure date here which one would be valid ,from the date of departure or date of visa stamp.?