Bangladesh is located between 20 º 34 to 26º 38 north latitude and 88.01 º to 92.42 º east longitude, with an area of 147,570 sq km). With a population of 164.000 million, Bangladesh is one of the world's most densely populated countries. Geologically, Bangladesh is a part of the Bengal Basin, one of the largest geosynclinals in the world.