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Every official government phone number we could verify for Nagapattinam district — Collector, Superintendent of Police, Revenue Divisional Officers, Tahsildars, and department heads — sourced from official .nic.in district portals and other government sources. Numbers can change with transfers; recheck before relying on one for anything time-critical.
| District Collector | M9444176000L04365-252700 |
| District Collector (Alt) | M9942184000L04365-252500 |
| District Revenue Officer | M9445000921L04365-253050 |
| Personal Assistant to Collector (General) | M9445008143L04365-253048 |
| Personal Assistant to Collector (Account) | M9442552458L04365-252500 |
| Additional Personal Assistant (Land) to Collector | M9443486537L04365-252500 |
| Assistant Collector | M9445000461L04365-248833 |
| Revenue Divisional Officer | M9443677698L04369-299650 |
| Special Deputy Collector, (SSS) | M9445461742L04365-251301 |
| Special Deputy Collector, Revenue Court | M9786759657L04365-249209 |
| District Collector | M9444176000L04365252700 |
| District Collector | M9942184000L04365252500 |
| District Revenue Officer | M9445000921L04365253050 |
| Personal Assistant to Collector (General) | M9445008143L04365253048 |
| Personal Assistant to Collector (Account) | M9442552458L04365252500 |
| Additional Personal Assistant (Land) to Collector | M9443486537L04365252500 |
| Assistant Collector, Nagapattinam | M9445000461L04365248833 |
| Revenue Divisional Officer | M9443677698L04369299650 |
| Special Deputy Collector (SSS) | M9445461742L04365251301 |
| Special Deputy Collector, Revenue Court | M9786759657L04365249209 |
| PA to Collector (Development) | M7402607429L04365253049 |
| PA to Collector, Nutritious Meal Programme | M7402607430L04365251583 |
| District Employment and Skill Development Department (Survey) | M9499055916L04365253022 |
| Survey and Land Records | M9443007972L04365253057 |
| Personal Assistant to Collector (Small Savings) | M9942267359L04365251136 |
| Revenue Divisional Officer, Vedaranyam | M9443677698L04369299650 |
| Superintendent Of Police | M9498111511L04365-247909 |
| Superintendent of Police | M9498111511L04365247909 |
| Deputy Superintendent of Police, Nagapattinam | M9498100906L04365242888 |
| Deputy Superintendent of Police, Vedaranyam | M9498100909L04369250402 |
| Deputy Superintendent Armed Reserve Police, Nagapattinam | L04365247837 |
| District Adi-Dravidar and Tribal Welfare Officer (I/C) | M7338801264L04365-250900 |
| District Backward classes and Minorities welfare Officer | M9445477833L04365-251562 |
| Asst. Commissioner (Excise) | M9445074586L04365-253086 |
| District Supply and Consumer Production Officer | M9445000303L04365-253084 |
| District Manager, Tasmac | M9445029727L0435-2462123 |
| District Employment and Skill Development Department | M9499055916L04365-252701 |
| District Adi-Dravidar and Tribal Welfare Officer (I/C) | M7338801264L04365250900 |
| District Backward Classes and Minorities Welfare Officer | M9445477833L04365251562 |
| Assistant Commissioner (Excise) | M9445074586L04365253086 |
| District Supply and Consumer Production Officer | M9445000303L04365253084 |
| District Manager, Tasmac | M9445029727L04352462123 |
| District Employment and Skill Development Department | M9499055916L04365252701 |
| Assistant Executive Engineer (AE) | M9442240121L04365251154 |
| Project Director, Malir Thittam | M9444094308L04365253061 |
| District Programme Officer | M9150057450L04365253062 |
| Assistant Director (Panchayat) | M7402607431L04365253055 |
| Assistant Director (Audit) | M7402607432L04365253094 |
| Hindu Religious & Charitable Endowments Department | M9443954981L04365241850 |
| Assistant Commissioner, Hindu Religious & Charitable Endowments | M9994632305L04365242342 |
| District Differently Abled Welfare Officer | M9499933482L04365253041 |
| Assistant Commissioner of Labour (Social Security Schemes) | M9976396492L04365252204 |
| General Manager, District Industrial Centre | M9841509321L04365251177 |
| AD, District Industrial Center | M9944473840L04365252701 |
| Assistant Director, Geology and Mining | M9499002249L04365250832 |
| District Environmental Engineer | M8056042178L04365299072 |
| District Tourism Officer, Poompuhar | M9176995843L04362228522 |
| District Panchayat Office | M7402607433L04365253018 |
| District Child Protection Unit (Department of Social Defence) | M9976308890L04365253018 |
| Taluk Supply Officer, Nagapattinam | M9445000304L04365242456 |
| Taluk Supply Officer, Kilvelur | M9445000306L04366275493 |
| Taluk Supply Officer, Thirukkuvalai | M9445000310L04366245450 |
| Taluk Supply Officer, Vedaranyam | M9445000305L04369250456 |
| Executive Officer, Thittachery | M8925809551L04365234408 |
| Executive Officer, Kilvelur | M8925809550L04366275436 |
| Executive Officer, Vailankanni | M8925809549L04365263448 |
| Executive Officer, Thalainayar | M8925809548L04369234458 |
| District Fire Officer, Nagapattinam | M9445086428L04365249409 |
| Assistant District Officer, Nagapattinam | M9445086429L04365249409 |
| Station Officer, Thirumarugal | M9445086530L04366270101 |
| Station Officer, Kilvelur | M9445086431L04366275101 |
| Station Officer, Velankanni | M9445086438L04365263101 |
| Station Officer, Vedharanyam | M9445086437L04369250101 |
| Station Officer, Thalainayaru | M9445086510L04369234101 |
| Station Officer, Voimedu | M9994817801L04369270201 |
| Treasury Officer | M9095651631L04365253044 |
| Assistant Treasury Officer, Nagapattinam | M8903281967L04365247970 |
| Assistant Treasury Officer, Kilvelur | M9524284045L04366276700 |
| Assistant Treasury Officer, Vedaranyam | M7639587880L04369252910 |
| Joint Director of Agriculture | M9361112438L04365253096 |
| Deputy Director of Agriculture (PA Agri) | M9245711645 |
| Assistant Director of Agriculture (Crop Insurance) | M8072836061 |
| Agricultural Officer (SS) | M9442929765 |
| Deputy Director of Horticulture (I/C) | M8248458098L04365299091 |
| Executive Engineer (AE), Agricultural Engineering Department | M9442049591L04365221083 |
| Block Development Officer, Nagapattinam | M7402607441L04365248451 |
| Block Development Officer, Thirumarugal | M7402607451L04366270451 |
| Block Development Officer, Kilvelur | M7402607445L04366275451 |
| Block Development Officer, Keelaiyur | M7402607443L04365265746 |
| Block Development Officer, Vedaranyam | M7402607449L04369250451 |
| Block Development Officer, Thalainayar | M7402607447L04369234421 |
| Project Director, District Rural Development Agency | M7373704215L04365253051 |
| Assistant Director, Town Panchayats, Thanjavur Zone | M8925809225L04362234247 |
| Regional Directorate of Municipal Administration | M7397396243L04362254364 |
| Municipality Commissioner, Nagapattinam | M7397396235L04365248055 |
| Municipality Commissioner, Vedaranyam | M7397396230L04369250452 |
| Government Transport Corporation (T.N.S.T.C.) | M9487898200 |
| State Transport Corporation (S.E.T.C.), Nagapattinam | M9445014420L04365247825 |
| Food Safety Officer (M.B.B.S., PGDFM) | M9486712423 |
| Director of Health Services | M9444982672L04365242214 |
| Deputy Director of Health Services | M7299041310L04365253065 |
| Nagore Andavar Government Hospital | M6380078088L04365250750 |
| Government Hospital, Kilvelur | M6381430442L04366275333 |
| Government Hospital (OPH), Thirukkuvalai | M9944108435L04366245240 |
| Government Hospital (GS, DNB), Vedaranyam | M9442829108L04369250621 |
| JD of Collegiate Education, Thanjavur | M9443032682L04365290431 |
| Station Officer (Transport), Nagapattinam | M9445086430L04365248101 |
| Regional Transport Officer, Nagapattinam | M9384808371L04365253088 |