Hi
Required the Nomination letter from ur New Employer
Ur Pass port Copies & First entry pages
PCC from ur embassy & FA endorsement
Normally they are checking the professinal certificate.
I don't know about Matric is accepted or not
If you are changing the sponser
Transfer & Immigration clearence from both sponcers
NOC from the current sponser
CEID office is in Salwa Road after the Salwa Petrol station (Industrial area)
Normally it takes 7-14 days