The Land Revenue Department is primarily concerned with Revenue Administration in the state which encompasses survey and settlement operation, maintenance and up gradation of land records and enforcement of land laws of the state. With New nomenclature of the Land Revenue & Disaster Management Department there has been a paradigm shift in the management of disasters at all levels, from a Relief Centric Response to disaster preparedness, mitigation and prevention. The enactment of Disaster Management Act 2005 provides greater impetus to the institutionalization of disaster management at state and district levels.

Sikkim State Disaster Management Authority (SSDMA) is a part of State Government and is a nodal institution for planning, co-ordination and monitoring for disaster prevention, mitigation, preparedness and management. SSDMA lays down policies on disaster management for the state. It approves disaster management plan in accordance to the guidelines laid down by National Authority and co-ordinates its implementation. It provides guidelines and reviews the measures being taken for mitigation, capacity building and preparedness by the Government and issue guidelines as necessary. SSDMA recommends provision of funds for mitigation and preparedness measures.