The Global Forum for Disaster Management, GFDM was inaugurated in Mexico city,Mexico during the fourth World Water for developing the global observing systems on geo-disasters and climate changes .In recent past the communities around the world witnessed number of disasters like Tsunami, earthquakes , cyclones , hurricanes ,Forest fires ,flash floods due to global climate changes etc . The tsunami tragedy along the south Asian coast changed the lives of millions of affected people in Asian countries . Several NGO's around the world played an important role in provision of immediate rehabilitation for the victims of the tsunami in which global observing systems provided siginificant information and support to the communities and societies. Recognizing the social responsibility, ISDR along with other organizations has provided immediate rehabilitation measures for tsunami-affected people in our country . For life to return to normal for the tsunami-affected population, systematic-scientific and technology-based efforts are needed. Also rehabilitation work should focused on cost-effective methods for tsunami rehabilitation. This global forum for disaster management will examine, among other items, the relation between the socio-economic dimension and scientific and technological methods and relevance to early rehabilitation programme in various parts of the world .ISDR along with Muktainagar-Taluka Education society ,India;International Commission on groundwater-Seawater Interactions,Russia and Open University geological society, Switzerland has accepted the responsibility of providing necessary infrastructure and Institutional help for Global forum for geohazards , geo-disaster management with the support from the global observing systems for conducting research and development and work related to geo ha natural disaster management such as tsunami rehabilitation. This presentation is based on the lesson learned from the GFDM - Geo-disaster management and mitigation in the Asia - Pacific region through the NGOs and academic and research institutions for social and ecological management during post disaster period .