The questions of aid quantity and quality, as well as factors influencing it positively or negatively have become central in the debates on international development cooperation. The current research analyses factors influencing the implementation of international development projects during the post- tsunami relief and reconstruction activities in Sri Lanka. It is based on author's own research held in Sri Lanka with the collaboration of worldwide famous development organizations, such as UN, HELVETAS, GTZ, CARE International and etc. Therefore the book provides the knowledge about the factors which can be destructive or supportive for a project, as well as what steps and actions should be undertaken to achieve its goals and objectives. In addition it highlights the strategies of development agencies in the times of catastrophes and disasters.