Bangladesh is a country of about 156 million people including nearly 7.81 million of slum people. This paper investigates 28 years data for 1986- 2014 periods on the living standard of slum dwellers of Bangladesh and presents the different forms of their deprivations, sufferings and miseries from basic needs including social, constitutional and economic rights. More specifically, the wretchedness of slum dwellers in housing, drinking water, sanitation, food intake, healthcare, education, employment, income patterns, social status and security, economic and public assistance has been explored in this paper. In addition, poverty scenario and services of social organization among slum people has been focused in this paper. Finally, it recommends some policies to improve the living conditions of slum dwellers in Bangladesh.