(MPPJ). Petaling Jaya progressed rapidly due to the massive rural-urban migration. As more people from rural areas immigrated, Sungai Way and Subang districts along with areas such as Subang Jaya, Seksyen 52 (New Town or colloquially known as State; the name of the first, former cinema in the area) developed in areas under the jurisdiction of the municipality.
Eventually, in a boundary realignment exercise in early 1997, parts of Petaling Jaya such as Subang Jaya, UEP Subang Jaya, Putra Heights, and Bandar Sunway were placed under the jurisdiction of the newly formed Subang Jaya Municipal Council or MPSJ.
Petaling Jaya also acts as one of the centre hubs of Klang Valley (comprising parts of Kuala Lumpur, Petaling Jaya, Shah Alam, Subang Jaya and other surrounding areas) for industry. True to its name "Jaya" (Malay for success), Petaling Jaya quickly became the most prosperous city in Selangor
