O. Panneerselvam assumed the office after previous Chief Minister Jayalalithaa was forced to resign in the year 2014. O. Panneerselvam her trusted aide assumed the office then resigned after her return on 23 May 2015.
Cabinet ministers
S.noNameConstituencyDesignationPortfoliosPartyChief Minister1.O. PanneerselvamBodinayakkanurChief Minister Public Home Police Indian Administrative Service Indian Police Service Indian Forest Service District Revenue Officers General Administration Finance Public WorksAIADMKCabinet Ministers2.Natham R. ViswanathanNathamMinister for Electricity, Prohibition and Excise Electricity Non-Conventional Energy Development Prohibition and Excise Molasses and Prevention of Corruption Act3.Edappadi PalaniswamiEdappadiMinister for Highways and Minor Ports Highways Minor PortsAIADMK4.Sellur K. RajuMadurai WestMinister for Co-operation Co-operation5.S. P. VelumaniThondamuthurMinister for Municipal Administration, Rural Development and Implementation of Special Programme Municipal Administration Rural Development Panchayats and Panchayat Unions Poverty Alleviation Programmes Rural Indebtedness Urban and Rural Water Supply Implementation of Special Programme6.K.A. JayapalNagapattinamMinister for Fisheries Fisheries and Fisheries Development Corporation7.P. PalaniappanPappireddipattiMinister for Higher Education Higher Education8.B. ValarmathiThousand LightsMinister for Social Welfare and Nutritious Noon Meal Programme Social Welfare including Women's and Children's Welfare Orphanages and Correctional Administration Integrated Child Development and Beggar Homes Welfare of the Differently Abled and Social Reforms Nutritious Noon Meal Programme9.P. ThangamaniKumarapalayamMinister for Industries Industries Steel Control Mines and Minerals10.N. D. VenkatachalamPerunduraiMinister for Environment Environment Pollution Control11.R. KamarajKrishnarayapuramMinister for Food and Civil Supplies Food Civil Supplies Consumer Protection and Price Control12.S. Gokula IndiraAnna NagarMinister for Handlooms and Textiles Handlooms and Textiles13.R. VaithilingamOrathanaduMinister for Housing and Urban Development Housing Rural Housing and Housing Development Slum Clearance Board and Accommodation Control Town Planning Urban Development Chennai Metropolitan Development Authority14.Dr. C. VijayabaskarViralimalaiMinister for Health Health Medical Education Family Welfare15.K.T. Rajenthra BhalajiSivakasiMinister for Information and Special Programme Implementation Information and Publicity Special Programme Implementation16.R. B. UdhayakumarSatturMinister for Revenue Revenue District Revenue Establishment Deputy Collectors17.B. V. RamanaaThiruvallurMinister for Milk and Dairy Development Milk and Dairy Development18.S.P. ShunmuganathanSrivaikuntamMinister for Tourism Tourism Tourism Development Corporation19.M.C. SampathCuddaloreMinister for Commercial Taxes and Registration Commercial Taxes Registration and Stamp Act20.P. MohanSankarapuramMinister for Rural Industries and Labour Rural Industries Labour21.K.C. VeeramaniJolarpetMinister for School Education School Education22.V. Senthil BalajiKarurMinister for Transport Transport Nationalised Transport and Motor Vehicles Act23.Mukkur N. SubramanianCheyyarMinister for Information Technology Information Technology24.N. SubramanianGandharvakottaiMinister for Adi Dravidar and Tribal Welfare Adi Dravidar Welfare Hill Tribes25.S. Abdul RahimAvadiMinister for Backward Classes and Minorities Welfare Backward Classes and Most Backward Classes and Denotified Communities26.T.K.M. ChinnayyaTambaramMinister for Animal Husbandry Animal Husbandry27.T. P. PoonachiManachanallurMinister for Khadi and Village Industries Khadi Village Industries28.M.S.M. AnandanTiruppur (North)Minister for Forests Forests29.P. Chendur PandianKadayanallurMinister for Hindu Religious and Charitable Endowments30.S.S. KrishnamoorthyKalasapakkamMinister for Agriculture Agriculture
References