In Tamil Nadu, there are 38 districts headed by District Collectors. The District Revenue Officer and other district level officers of various departments carry out the functions under the overall supervision of District Collector/ District Magistrate.

Revenue and Disaster Management Department has the legacy and pride of being the oldest department in the administrative setup of the State. It has a well defined and established network through out the State from cities to the Villages, reaching every family. The Revenue Department implements various socio-economic schemes of the Government aimed at inclusive growth and also provides multifarious e-services that touches almost all aspects of citizen’s life. The following are the prime functions of the Revenue and Disaster Management Department viz.,

1. Providing efficient delivery of citizen centric services and effective implementation of Social Security Schemes
2. Disaster Management, Relief and Rehabilitation of people affected by disaster
3. Act as a Custodian of Government Lands / Proper Maintenance of Land Records of the State Implementation of Land Reform measures
4. Implementation of Land Reform measures

At the State level, the functions which were performed by the erstwhile Board of Revenue are now looked after by various Heads of Department, viz.,

Commissionerate of Revenue Administration and Disaster Management (including Social Security Schemes)