Nepal is a signatory country of Hyogo Framework for Action (2005-2015) that aims to increase national disaster resilience. Government of Nepal also has given high priority to disaster risk reduction. Government organizations, non-government organizations as well as international non-government organization (INGOs) have been contributing in water-induced disaster risk reduction (WIDRR) works. Still, the impacts of such disasters have not come to a manageable limit. This connotes that the approaches adopted are not up to the mark. WIDRR needs a holistic approach to address the related aspects. This study aims at developing a way of assessing whether or not these organizations have carried out WIDRR works in an integrated way. This study has put forward a way of assessing the effectiveness of such works is developed in the form of a matrix, named as Effectiveness Measurement Methods (EMM). This matrix has aimed to quantify the works done by the organizations for WIDRR. This matrix was used to assess the work of two INGOs, Practical Action (in Nawalparasi district) and Oxfam GB Nepal (in Rautahat district) in Nepal. The learning of the field works were also used for improvement of EMM.