Islamabad-Rawalpindi metropolitan area the larger metropolitan area. It uses dedicated bus lanes for all of its route covering 24 bus stations. As Pakistan's capital city, Islamabad serves as the seat of the federal government and is the country's political center. Rawalpindi has remained important historically, as it hosts the headquarters of Pakistan's army. Rawalpindi also temporarily served as the federal capital when Islamabad was being built in the 1960s, to replace Karachi as the capital. Islamabad-Rawalpindi metropolitan area The Islamabad-Rawalpindi metropolitan area is Pakistan's third most populous metropolitan area. It consists principally of the twin cities of Islamabad and Rawalpindi, along with smaller
Nilore, Islamabad and re-located at unknown locations. Nilore, Islamabad Nilore () is a townsite-city in the Islamabad Capital Territory of Pakistan, located and established in the district limit of Islamabad. The city is located in the vicinity of Islamabad, and controlled under the Capital Territory Police (CPT) to ensure the law and justice in the city. Nilore was established in 1967 as a research site for nuclear technology. It became a secret city and became one of the major research site for the integrated nuclear development to develop the atom bomb in the 1970s. It was closed to the public in the