Pakistan also known as Islamic Republic of Pakistan , is a country in South Asia. It is the fifth most populous country in the world with a population of approximately 242 million and has the second largest Muslim population in the world. Pakistan is the 33rd largest country by area, covering 881,913 square kilometers (340,509 sq mi). miles) covered. It has a 1.04K kilometers arealine along the Arabian Sea and the Gulf of Oman to the south. It is bordered by India to the east and its west is covered by Afghanistan, southwest to the Iran, northeast to the China. It is separated from Tajikistan to the north by the Afghan Corridor and shares a maritime border with Oman.