Improving the socioeconomic condition of slums is one of the development goals in Sustainable Development Goal (SDG’s). Slums are the poor areas, where low income group of people lives. In general, the socioeconomic condition of slum dwellers is poor they have lack basic amenities; such as affordable education, functional skill, source of income, drinking water, basic infrastructure, utilities, health and hygiene resources. This study was conducted to examine the socioeconomic condition of slum and the Non-Government Organizations (NGO’s) intervention in slum improvement of Taj Abad and Gujjar Camp areas of Peshawar district. This research thesis attempts to demonstrate the NGO’s intervention in the context of socioeconomic condition of slum dwellers. This research thesis is conceptual in nature and based on detailed literature, collected from various books, magazines, conference research articles, NGO’s and Governments reports and census of Pakistan survey etc. Lastly this research thesis suggests the NGO’s to minimize and solve the problems and rising the living condition of slum dwellers, also this research thesis is a guideline information to policy makers, urban planners, environmental advocates, Non-Governmental Organizations (NGO’s) and the researchers. Findings of the study suggest that there is a need of community participation and more NGO’s involvement for the improvement of slum dwellers. NGO’s involvement in slums have largely positive impact on the socioeconomic condition of slum dwellers. Supervisor:- Dr. Zulfiqar Ali