Putrajaya (putraˈdʒaja, putrəˈdʒajə), officially the Federal Territory of Putrajaya (Wilayah Persekutuan Putrajaya), is the administrative and judicial capital of Malaysia. The seat of the federal government of Malaysia was moved in 1999 from Kuala Lumpur to Putrajaya because of overcrowding and congestion in the former, while the seat of the judiciary of Malaysia was later moved to Putrajaya in 2003. Kuala Lumpur remains Malaysia's national capital city per the constitution and is still the seat of the head of state (Yang di-Pertuan Agong) and the national legislature (Parliament of Malaysia), as well as being the country's commercial and financial centre. The establishment of Putrajaya was the idea of then-Prime Minister Mahathir Mohamad. The development of Putrajaya began in August 1995 and it was completed at an estimated cost of US$8.1 billion. On February 1, 2001, Putrajaya became Malaysia's third federal territory, after Kuala Lumpur in 1974 and Labuan in 1984. Putrajaya is also a part of MSC Malaysia, a special economic zone that covers the Klang Valley. Putrajaya was named after the first Prime Minister of Malaysia, Tunku Abdul Rahman Putra Al-Haj; the territory is entirely enclaved within the Sepang District of the state of Selangor. The etymology of the city is derived from the Sanskrit language, which was then adopted into Malay; "putra" (पुत्र) means son and "jaya" (जया) means "success" or "victory"; hence Putrajaya means victorious men or people. Prang Besar (Jawi: ڤراڠ بسر, alternately Perang Besar (Malay for "Great War"), was founded in 1921 on land that was jungle, as a rubber plantation by British veterans of World War I, hence the name. Its land area of expanded to , and it was merged with surrounding estates, including Estet Raja Alang, Estet Galloway and Estet Bukit Prang. Until 1975, what is today Putrajaya, along with adjacent Cyberjaya, was under the administration of Hulu Langat (Kajang) district.