Human Development Index (HDI) is a composite index incorporated in the human development report that measures the average achievements in a country in three basic dimensions of human development: a long and healthy life, access to knowledge and a decent standard of living. These basic dimensions are measured by life expectancy at birth, adult literacy alongwith combined gross enrolment in primary, secondary and tertiary level education and gross domestic product per capita in purchasing power parity in US Dollars (PPP US$ ) respectively. The index is constructed from indicators that are available globally using a methodology that is simple and transparent.