Question: In what part of Pakistan is the company owned by Malik Riaz Hussain based?

Context paragraphs:
Malik Riaz Hai Naveed: Malik Riaz Hai Naveed (Urdu: ملک ریاض حیی نوید‎ ; born 25 February 1988 in Neuss) is a German liberal politician and Pakistani sports manager.  He founded FootballPakistan.Com and managed the first professional football club in Pakistan PMC Club Athletico Faisalabad in the 2008 season.  His family roots back to Mandi Rurala Road, near Faisalabad.

Chak Shahzad: Chak Shahzad (Urdu: ‎ ), is a modern suburb situated in the Islamabad Capital Territory of Pakistan Historically, the suburb was home to Malik and chudhary tribesmen, but recently has seen a growth in farmhouses of the rich and wealthy from nearby Islamabad, including that of Pervez Musharaf, Makhdoom Ameen Faheem and Dr Tariq Fazal Chaudry.  The famous political leader & cricketer Imran khan also lives nearby.  The private housing society of Malik Riaz, Bahria Enclave Islamabad, is just 4km away from Chakshahzad.  Zero point interchange (the centre of the city) is just 12km away.  The famous anchor Javed Chaudry also lives in Shehzad town, Chakshahzad.  It is also considered as a home for some important landmarks including National Agricultural Research Center, Health Services Academy (HSA), and COMSATS University.

Malik Riaz: Malik Riaz Hussain (Urdu, Punjabi: ; born February 8, 1954) is a Pakistani businessperson, billionaire and philanthropist.  He is the founder and chairman of Bahria Town, the largest privately held real estate development company in Asia.  Riaz is currently the 7th richest person in Pakistan, with an estimated wealth of over a billion US$, he is one of Pakistan's most prominent philanthropists.

Riaz Hussain Pirzada: Riaz Hussain Peerzada (Urdu: ‎ ; born 1 August 1948) is a Pakistani politician who is the current Minister for Inter Provincial Coordination, in office since August 2017.  A member of Pakistan Muslim League (Nawaz), Pirzada previously held the cabinet portfolio of Minister of Inter Provincial Co-ordination from 2013 to 2017, Minister for Health in 2011 and Minister for Professional and Technical Training from 2011 to 2012. <ref name="profile/ipc.gov.pk/"> </ref>

Hafiz Riaz Hussain Najafi: Grand Ayatollah Allama Hafiz Syed Riaz Hussain Najafi is a Shia scholar from Pakistan.  He is the principal of Hawza Elmiye Jamia-tul-Muntazar Lahore, the largest Shia madrassah in Pakistan.  He is the son-in-law and most prominent disciple of his uncle, Ustad ul Ulama Grand ayatullah, Syed Muhammad Yar Naqvi Najafi.

Martial Law Administrator of Balochistan: The Martial Law Administrator of Balochistan was the head of the military regime of Balochistan, the largest province of Pakistan.  The capacity was first established when martial law was imposed by General Yahya Khan, who appointed Riaz Hussain to the post, but was never officially ratified.  It therefore lapsed when Yahya resigned.  The post was officially in operation from July 1977, when martial law was imposed again, until late 1985, when it was informally terminated upon the lifting of martial law by Prime Minister Muhammad Khan Junejo.  The martial law administrator was a serving Lieutenant General of the Pakistan Army, appointed by the Chief of Army Staff.  General Muhammad Zia-ul-Haq was the incumbent in each instance.  When the presidential term of Fazal Ilahi Chaudhry ended, the post assumed the political office of Governor of Balochistan; the civilian Chief Justices who were acting as governors of the provinces were replaced by their martial law counterparts.  Of the three officeholders, none completed their designated term.

Syed Riaz Hussain Shah: Syed Riaz Hussain Shah is a Pakistani Islamic scholar of the Sufi school.  He Secretary General (مرکزی ناظم اعلٰی) of the Jamaat Ahle Sunnat Pakistanhttps://www.facebook.com/JamateAhleSunnatPakistan.Official/ in Pakistan and Internationally and head of the Academy of Islamic & Modern Studies AIMS in Islamabad.  He is also Director of ادارہ تعلیمات اسلامیہ Idara Taleemat e Islamia situated in Rawalpindi and has branches in different cities of the country.

Riaz Khokhar: Riaz Hussain Khokhar (Urdu: ریاض کھو کھر‎ ) is the former Foreign Secretary of Pakistan serving from June 2002 to February 2005, when he was replaced by Riaz Mohammad Khan.  Khokhar also served as Pakistan's ambassador to India (1992–1997), the United States (1997–1999) and China (1999–2002) before leading the top post of foreign ministry.

Bahria Town: Bahria Town (Urdu: ‎ ) is a Rawalpindi-based privately owned real-estate development company which owns, develops and manages properties across Pakistan.  It is the largest private real estate company in Asia.

Riaz Hussain (politician): Riaz Hussain was a Pakistani politician and retired lieutenant general in the Pakistan Army.  He served as the 3rd Director-General of ISI from 1959 to 1966.  He later joined politics and became the first Governor of Balochistan serving from 1 July 1970 to 25 December 1971.

Supporting paragraphs: Malik Riaz Bahria Town
Answer: Rawalpindi