Capital of the Republic (Determination of Area) Ordinance, 1963

This 1963 Ordinance formally fixed the geographic boundaries of Islamabad, Pakistan's capital, as required by the Constitution. Section 1 gives it its short title, and the preamble explains the constitutional background: Article 211 (as it then stood) designated Islamabad, in the District of Rawalpindi, Punjab, as the Republic's capital, and required the Central Legislature to determine its area, which had to be no less than two hundred square miles.

Section 2 is the operative provision: it sets the Capital's area at approximately three hundred and fifty square miles, located within Rawalpindi district, as precisely described in the Ordinance's Schedule. The Schedule itself is a highly technical boundary description using surveyor's map references, tracing the capital's perimeter point by point -- starting near the Nicholson Monument, running along the Margala Range ridge, following district and tehsil boundaries, rivers (including the Soan), roads (including the G.T. Road and Islamabad Highway), and various named landmarks (villages, nalas/streams, and even a "Jerry Cane Factory") back to the starting point.

This is a short, highly technical, geography-defining law rather than one setting out rights, duties or penalties. It remains foundational to Islamabad Capital Territory's legal boundaries, though later laws and constitutional amendments (the current Constitution's Islamabad-related provisions differ in article numbering from the 1962-era Article 211 referenced here) should be checked if precise current territorial boundaries are needed.