Are major accidents which cause wide spread disruption of human and commercial activities. Normally, common accidents are absorbed by the community, but disasters are major accidents and community cannot absorb them with their own resources. Most of the disasters, natural or technological (man made) have sudden onset and give very short notice or no time to prevent the occurrence. Disasters may cause loss of human life, injuries and long term disablement of people working in the organisation and local community around the industrial area. Normally, loss of lives, total or partial disability have more impact on the community than damage to the properties. Damage to the property has a long term social impact like loss of revenue, employment and rebuilding cost and lead to severe economic constraints. (From: Ernakulam District Crisis Management Plan, Kerala, India/ http: //www.ernakulamcrisismanagement.org/cmg_what.html on 28 June 2004)