Complex sentence: It is administered by the "Ampang Jaya Municipal Council" (MPAJ) so it is physically located in Selangor even though the town's postcode is 53100, which falls under the jurisdiction of Kuala Lumpur.
Split into simpler sentences: It is administered by the "Ampang Jaya Municipal Council" (MPAJ). The town's postcode is 53100, which falls under the jurisdiction of Kuala Lumpur.