Secretary to Government Phone :25671848(O) Fax :25672446 E-Mail : adisec(at)tn.gov.in
Agriculture Department
Thiru Gagandeep Singh Bedi, IAS Agricultural Production Commissioner and Principal Secretary to Government Phone :25674482(O) E-Mail : agrisec(at)tn.gov.in
Animal Husbandry, Dairying and Fisheries Department
Dr.K.Gopal IAS., Principal Secretary to Government Phone :25672937(O) E-Mail : ahsec(at)tn.gov.in
BC, MBC & Minorities Welfare Department
Dr B. Chandra Mohan IAS., Principal Secretary to Government Phone :25670848(O) Fax :25670756 E-Mail : bcsec(at)tn.gov.in
Commercial Taxes and Registration Department
Dr Beela Rajesh, IAS., Principal Secretary to Government Phone :25672757 PBX No:5587(O) E-Mail : ctsec(at)tn.gov.in
Co-operation, Food and Consumer Protection Department
Thiru Dayanand Kataria, IAS Additional Chief Secretary to Government Phone :25672224 PABX:5647(O) E-Mail : coopsec(at)tn.gov.in
Energy Department
Thiru S.K Prabakar IAS., Principal Secretary to Government (FAC) Phone :25671496,PABX-5975(O) Fax :25672923 E-Mail : enersec(at)tn.gov.in
Environment and Forests Department
Dr Sandeep Saxena IAS., Additional Chief Secretary to Government Phone :25671511 PABX 5691(O) Fax :25670560 E-Mail : forsec(at)tn.gov.in
Finance Department
Thiru S. Krishnan IAS Additional Chief Secretary to Government Phone :25671173,PBX No-5636(O) , 26444272(R) Fax :25671252 E-Mail : finsec(at)tn.gov.in
Handlooms, Handicrafts, Textiles and Khadi Department
Thiru Shambhu Kallolikar, IAS Principal Secretary to Government Phone :25671623(O) Fax :25672261 E-Mail : htksec(at)tn.gov.in
Health and Family Welfare Department
Dr J. Radhakrishnan IAS., Principal Secretary to Government Phone :25671875,PABX-5671(O) Fax :25671253 E-Mail : hfsec(at)tn.gov.in
Higher Education Department
Selvi Apoorva IAS., Principal Secretary to Government Phone :25670499(O) E-Mail : hrsec(at)tn.gov.in
Highways and Minor Ports Department
Thiru A. Karthik, IAS., Principal Secretary to Government Phone :25670959(O) , 26532303(R) Fax :25673035 E-Mail : hwaysec(at)tn.gov.in
Home, Prohibition and Excise Department
Thiru S.K Prabakar IAS., Additional Chief Secretary to Government Phone :25671113,25670077 PABX 5632(O) E-Mail : homesec(at)tn.gov.in
Housing and Urban Development Department
Dr D Karthikeyan, IAS Principal Secretary to Government Phone :25670516(O) Fax :25670611 E-Mail : hud(at)tn.gov.in
Industries Department
Thiru N.Muruganandam, IAS., Principal Secretary to Government Phone :25671383(O) E-Mail : indsec(at)tn.gov.in
Industries Department
Thiru V.Subramanian Under Secretary Phone :(O)
Industries Department
Thiru R.Veeruswamy Under Secretary Phone :(O)
Industries Department
Thiru A.Vijayarajan Under Secretary Phone :(O)
Information Technology Department
Thiru Hans Raj Verma, IAS Additional Chief Secretary to Government (FAC) Phone :25670783(O) E-Mail : secyit.tn(at)nic.in
Labour and Employment Department
Thiru Md. Nasimuddin, I.A.S., Additional Chief Secretary to Government Phone :25670472,PABX-5683(O) E-Mail : labsec(at)tn.gov.in
Law Department
Thiru C. Gopi RaviKumar, M.A., M.L., Secretary to Government Phone :25672920(O) E-Mail : Email: lawsec(at)tn.gov.in
Micro , Small and Medium Enterprises Department
Thiru Mangat Ram Sharma IAS., Principal Secretary to Government Phone :25671476(O) Fax :25675453 E-Mail : sindsec(at)tn.gov.in
Municipal Administration and Water Supply Department
Thiru Harmander Singh IAS Additional Chief Secretary to Government Phone :25670491(O) E-Mail : Email: mawssec(at)tn.gov.in
Personnel and Administrative Reforms Department
Thiru Har Sahay Meena, IAS Principal Secretary to Government (Training) Phone :25674866(O) Fax :25675120 E-Mail : partgsec(at)tn.gov.in
Personnel and Administrative Reforms Department
Dr S. Swarna, IAS Principal Secretary to Government Phone :25672740(O) Fax :25673437 E-Mail : parsec(at)tn.gov.in
Planning, Development and Special Initiatives Department
Tmt Jayashree Raghunandan IAS., Addl .Chief Secretary to Government (Planning and Development) Phone :25674310(O) E-Mail : plansec(at)tn.gov.in
Public Department
Dr P.SenthilKumar, IAS Principal Secretary(FAC) Phone :(O)
Public Works Department
Dr K. Manivasan, IAS Principal Secretary to Government Phone :25671622 PBX No:5673(O) , 26532303(R) E-Mail : Email: pwdsec(at)tn.gov.in
Revenue and Disaster Management Department
Dr Atulya Misra, IAS Additional Chief Secretary to Government Phone :25671556 PABX 5664(O) Fax :25672603 E-Mail : revsec(at)tn.gov.in
Rural Development and Panchayat Raj Department
Thiru Hans Raj Verma, IAS Additional Chief Secretary to Government Phone :25670769(O) , 24796855(R) E-Mail : Email: ruralsec(at)tn.gov.in
Social Welfare and Nutritious Meal Programme Department
Tmt S. Madumathi, I.A.S., Secretary to Government Phone :25671545(O)(O) Fax :25675183
Special Programme Implementation
Thiru Hans Raj Verma IAS Additional Chief Secretary to Government(FAC) Phone :25670997 PABX 5789(O) E-Mail : Email: spidept(at)tn.gov.in
Tamil Dev. and Information Department
Thiru Mahesan Kasirajan, IAS Secretary to Government Phone :25672887(O) , 23727226(R) Fax :25672021 E-Mail : tdinfosec(at)tn.gov.in
Tourism,Culture and Religious Endowments Department
Thiru Vikram Kapur, IAS., Additional Chief Secretary to Government Phone : 25670820(O) E-Mail : toursec(at)tn.gov.in
Transport Department
Thiru C. Samayamoorthy, I.A.S., Secretary to Government Phone :25671475(O) Fax :25670083 E-Mail : transec(at)tn.gov.in
Youth Welfare and Sports Development Department
Thiru Apurva Varma, IAS., Addl Chief Secretary to Government Phone :25671233(O) Fax :25671233 E-Mail : ywssec(at)tn.gov.in