Rawalpindi launched his "coup d'etat" from Rawalpindi. In 1959, the city became the interim capital of the country under Ayub Khan, who had sought the creation of a new planned capital of Islamabad in the vicinity of Rawalpindi. As a result, Rawalpindi saw most major central government offices and institutions relocate to nearby territory, and its population rapidly expand. Construction of Pakistan's new capital city of Islamabad in 1961 led to greater investment in Rawalpindi. Rawalpindi remained the headquarters of the Pakistani Army after the capital shifted to Islamabad in 1969, while the Pakistan Air Force continues to maintain an airbase
Pakistan Academy of Sciences At first, the Academy was sited in Lahore and considerations were made to establish the headquarters of the Academy in Karachi—a temporary federal capital at that time. An additional office was established in Dhaka to support scientific activities in East Pakistan. In 1965, the headquarters of the academy was permanently shifted to Islamabad the federal capital and was located near the Quaid-e-Azam University until 1976. In 1976, the headquarters was shifted to a rented building in Islamabad, with financial assistance from the Pakistan Science Foundation (PSF). The rented building contained the library of the Academy, a committee room, office rooms