Islamabad (Punjabi, Pashto, Urdu: اسلام آباد‎) Islām ābād (Meanin ""Abode o Islam"") is the caipital o Pakistan an the tent lairgest ceety in the kintra. Locatit in the Islamabad Caipital Territory, the population o the ceety haes increased frae 100,000 in 1951 tae 1.21 million in 2009. The Rawalpindi/Islamabad Metropolitan Aurie is the third lairgest in Pakistan wi a population o ower 4.5 million indwallers.