fauna with many species and habitats. To protect this diversity of wildlife there are Protected areas of Tamil Nadu as well as biospheres which protect larger areas of natural habitat often include one or more national parks. The Gulf of Mannar Biosphere Reserve established in 1986 is a marine ecosystem with seaweed seagrass communities, coral reefs, salt marshes, and mangrove forests. The Nilgiri Biosphere Reserve located in the Western Ghats and Nilgiri Hills comprises part of adjoining states of Kerala and Karnataka. The Agasthyamala Biosphere Reserve is in the southwest of the state bordering Kerala in the Western Ghats. Tamil Nadu is home to five declared national parks located in Anamalai, Mudumalai, Mukurthi, Gulf of Mannar, Guindy located in the center of Chennai City and Vandalur located in South Chennai. Sathyamangalam Tiger Reserve, Mukurthi National Park and Kalakkad Mundanthurai Tiger Reserve are the tiger reserves in the state. Governance and administration The governor is the constitutional head of the state while the chief minister is the head of the government and the head of the council of ministers. The Chief Justice of the Madras High Court is the head of the judiciary. The present governor, chief minister and the chief justice are R. N. Ravi, M. K. Stalin and Munishwar Nath Bhandari respectively. Administratively the state is divided into 38 districts. Chennai, the capital of the state is the fourth largest urban agglomeration in India and is also one of the major metropolitan cities of India. The state comprises 39 Lok Sabha constituencies and 234 Legislative Assembly constituencies. Tamil Nadu had a bicameral legislature until 1986, when it was replaced with a unicameral legislature, like most other states in India. The term length of the government is five years. The present government is headed by M.K.Stalin of the DMK (Dravida Munnetra Kazhagam) party after his recent victory in the Tamil Nadu Legislative Elections in 2021 . The Tamil Nadu legislative assembly is housed at the Fort St. George in Chennai. The state had come under the President's rule on four occasions – first from 1976 to 1977, next for a short period in 1980, then from 1988 to 1989 and the latest in 1991. Tamil Nadu has been a pioneering state of E-Governance initiatives in India. A large part of the government records like land ownership records are digitised and all major offices of the state government like Urban Local