Title: Peshawar
Content:  Peshawar (پېښور ; ; ; ) is the capital of the Pakistani province of Khyber Pakhtunkhwa and its largest city. It is the sixth-largest city in Pakistan, and the largest Pashtun-majority city in the country. Situated in the broad Valley of Peshawar east of the historic Khyber Pass, close to the border with Afghanistan, Peshawar's recorded history dates back to at least 539 BCE, making it the oldest city in Pakistan and one of the oldest cities in South Asia. In Ancient India, the city was known as Purushpura and served as the capital of the Kushan Empire under the rule of Kanishka; and was home to the Kanishka stupa, which was among the tallest buildings in the ancient world. Peshawar was then ruled by the Hephthalites, followed by the Hindu Shahis, before the arrival of Muslim empires. The city was an important trading centre during the Mughal era, before becoming part of the Pashtun Durrani Empire in 1747, and serving as their winter capital from 1776 until the capture of the city by the Sikh Empire in March 1823, who were followed by the British Indian Empire in 1846.
Title: History of Multan
Content:  Multan in Punjab province of Pakistan is one of the oldest cities in South Asia,It was firstly ruled by Katoch Rajputs. though its exact age has yet to be determined. It has seen a lot of warfare because of its location on a major invasion route between South and Central Asia. It is famous for its Sufi shrines. It was restored in the 1100s.
Title: List of capitals in Pakistan
Content:  Islamabad officially became the capital of Pakistan on 14 August 1967, exactly 20 years after the country's independence. The first capital of Pakistan was the coastal city of Karachi in Sindh, which was selected by Muhammad Ali Jinnah. Karachi was and still is the largest city and economic capital of Pakistan. It remained the seat of government until 1959, when the military president, Ayub Khan, decided to build a new capital, Islamabad in the north of Pakistan, near the general headquarters of the Pakistani Armed Forces which is in Rawalpindi. During this process, Rawalpindi was the interim capital. It's believed the name of Islamabad was influenced from the Mughal name of the Bengali port city 
Title: Punjab, Pakistan
Content:  The oldest evidence of human life in Pakistan has been found in Soan River valley. It was here that some of the earliest signs of humans have been discovered during the excavations of prehistoric mounds. Tools up to two million years old have been recovered in the Potohar plateau. In the Soan River, many fossil bearing rocks are exposed on the surface. Punjab was part of the Indus Valley Civilization, more than 5000 years old. The main site in Punjab was the city of Harrapa. The Indus Valley Civilization spanned much of what is today Pakistan and eventually evolved into the Indo-Aryan civilization. The arrival of the Indo-Aryans led to the flourishing of 
Title: History of Hyderabad, Sindh
Content:  Hyderabad, twice the capital of Sindh and now the sixth largest city of Pakistan, is one of the oldest cities of the South Asia. Hyderabad is a communication centre, connected by rail with Peshawar and Karachi. The second largest city of the province of Sindh, it has over 6 million people dwelling in it.
Title: Punjab, Pakistan
Content:   Punjab has been the cradle of civilisation since time immemorial. The ruins of Harappa show an advanced urban culture that flourished over 8000 years ago. Ancient Taxila, another historic landmark also stands out as a proof of the achievements of the area in learning, arts and crafts. The ancient Hindu Katasraj temple and the Salt Range temples are regaining attention and are in need of repair. Mosques abound all over Punjab and vary in architectural style. Calligraphic inscriptions from the Quran decorate mosques and mausoleums in Punjab. The inscriptions on bricks and tiles of the mausoleum of Shah Rukn-e-Alam (1320 AD) at Multan are outstanding specimens of architectural calligraphy. The earliest existing building in South Asia with enamelled tile-work is the tomb of Shah Yusuf Gardezi (1150 AD) at Multan. A specimen of the sixteenth century tile-work at Lahore is the tomb of Sheikh Musa Ahangar, with its brilliant blue dome. The tile-work of Emperor Shah Jahan is of a richer and more elaborate nature. The pictured wall of Lahore Fort is the last line in the tile-work in the entire world.
Title: Urbanisation in Pakistan
Content:  Urbanization in Pakistan has increased since the time of independence and has several different causes. The majority of southern Pakistan's population lives along the Indus River. Karachi is its most populous city. In the northern half of the country, most of the population lives in an arc formed by the cities of Lahore, Faisalabad, Rawalpindi, Islamabad, Gujranwala, Sialkot, Gujrat, Jhelum, Sargodha, Sheikhupura, Nowshera, Mardan and Peshawar. During 1990–2008, city dwellers made up 36% of Pakistan's population, making it the most urbanised nation in South Asia. Furthermore, 50% of Pakistanis live in towns of 5,000 people or more.
Title: History of Lahore
Content:  The recorded history of Lahore, the second largest city-district of Pakistan, covers thousands of years. Originally the capital and largest city of the Punjab region, it has since its creation changed hands from Hindu, Buddhist, Greek, Muslim, Mughal, Afghan, Sikh and the British, thereby becoming the cultural capital and the heart of modern-day Pakistan.
Title: Urban area
Content:  In Pakistan, an area is a major city and municipality if it has more than 100,000 inhabitants according to census results. Cities include adjacent cantonments. Urbanisation in Pakistan has increased since the time of independence and has several different causes. The majority of southern Pakistan's population lives along the Indus River. Karachi is its most populous city. In the northern half of the country, most of the population lives in an arc formed by the cities of Lahore, Faisalabad, Rawalpindi, Islamabad, Gujranwala, Sialkot, Gujrat, Jhelum, Sargodha, Sheikhupura, Nowshera, Mardan and Peshawar. During 1990–2008, city dwellers made up 36% of Pakistan's population, making it the most urbanised nation in South Asia. Furthermore, 50% of Pakistanis live in towns of 5,000 people or more. Karachi is the most populated city in Pakistan closely followed by Lahore according to the 2017 Census.
Title: Lahore
Content:  Lahore is the capital of the Pakistani province of Punjab and is the country's 2nd largest city after Karachi, as well as the 26th largest city in the world. Lahore is one of Pakistan's wealthiest cities with an estimated GDP (PPP) of $84 billion as of 2019. It is the largest city and historic cultural centre of the wider Punjab region, and is one of Pakistan's most socially liberal, progressive, and cosmopolitan cities. Sir Ganga Ram is considered as "The Father of Modern Lahore". Lahore's origins reach into antiquity. The city has been controlled by numerous empires throughout the course of its history, 

Question: which city is the oldest in pakistan?
Answer: Bahawalpur.