If I may, Sarmad you can try polyurethane base paints (best in the category) for bedliners and you will see them in the link provided by Zain.
Jotun paints, Norwegian, is another company (but on the dearer side) who have recently come to Pakistan and they import paints in packaged forms so they will arrange for you. I am sure they have a office in KHI but don't about the whereabouts. Just google it.
Cheers,
Kaleem