This book assesses the impact of development interventions channeled through IDP camps on key development aspects of IDPs. In Sri Lanka, during the war that ended in 2009, more than 280,000 people were displaced. Today, all the IDPs have been resettled returned or locally integrated.In this process, the government had to work in collaboration with local and international organizations while intervening with need-based programs. During the resettlement process of IDPs, finding a durable solution was the key issue the Sri Lankan government faced. The book thorough an empirical research on development interventions channeled on IDP’s by various agencies during the camp stage analyses the impacts on resettled IDPs in comparison to internationally accepted guiding principles. Based on the lessons learnt of the resettlement approach adopted, the book presents an integrated model as a durable solution that can be applied on any IDP or refugee situation that may occur anywhere in the world. Finally, the book recommends that development of IDP’s livelihood oriented competencies and capacities during the pre-resettlement period is a key driver towards a sustainable solution.