Petaling Jaya, colloquially referred to as "PJ", is a city in Petaling District, in the state of Selangor, Malaysia. Originally developed as a satellite …Petaling Jaya, colloquially referred to as "PJ", is a city in Petaling District, in the state of Selangor, Malaysia. Originally developed as a satellite township for Kuala Lumpur, the capital of Malaysia, it is part of the Greater Kuala Lumpur area. Petaling Jaya was granted city status on 20 June 2006. It has an area of approximately 97.2 square kilometres.