Dhaka, July 10 -- Economics Nobel Laureate Amartya Sen lauded Bangladesh's social development in many fields, such as gender equity, women's empowerment, mortality rate, life expectancy and immunization. Despite such significant improvement in Bangladesh's economic performance, formidable economic challenges still lie ahead. With per capita income of US$ 2000.00, country still remains one of the least developed countries in the world. An estimated 63 million people live under the poverty line in a country of 163 million people. Bangladesh has also witnessed rapid urbanization with more than a third of population now living in urban areas and continuing. Despite the population growth rate has come down to 1.2 per cent per annum, the countr...