A district of an Indian state is an administrative geographical unit, headed by a District Collector (DC) or Deputy Commissioner in some states (DC). The District Collector is dual-hatted and also holds the title of District Magistrate. As a District Magistrate he or she is responsible for maintaining law and order in that district and as a District Collector responsible for collection the revenue. Generally, an officer belonging to the Indian Administrative Service (IAS) becomes the DC but occasionally officers belonging to the Odisha Civil Service too get appointed. The DC is assisted by a number of district-level officials belonging to different state government department for administering services to the state. A Superintendent of Police, an officer belonging to Indian Police Service is entrusted with the responsibility of maintaining law and order and related issues.