A least developed country (LDC) is a country that, according to the United Nations, exhibits the lowest indicators of socioeconomic development, with the lowest Human Development Index ratings of all countries in the world. The concept of LDCs originated in the late 1960s and the first group of LDCs was listed by the UN in its resolution 2768 (XXVI) of 18 November 1971. A country is classified as a Least Developed Country if it meets three criteria:

২০১৬ইং জুন পর্যন্ত তথ্য অনুযায়ী
Source: WIKIPEDIA