from which market it has landed in Pakistan., as mentioned by @hassan1991 EGR is market dependent. Specially Europe & Atlantic Treaty Commonwealth signatories where the diesel vehicles are allowed under strict emission control laws.
locate your vehicle ID plate google the frame number to isolate the country where it was exported to before landing into Pakistan.
here is image of 3L EGR valve locate it in your vehicle please
it is connected from intake manifold around firewall to exhaust manifold.
engine service Manual is HERE
