| Sr. No. | Office Name | Pincode | Office Type Status | Delivery Status | Division | Region | Circle | Taluk | District Name | Telephone | Related Sub Office | Related Head office |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 301. | Sannanallur S.O | 609504 | Sub Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | 04366-236530 | - | Tiruvarur H.O |
| 302. | Seeyathamangai B.O | 609702 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | - | Tirumarugal S.O | Nagapattinam H.O |
| 303. | Sembianmahadevi B.O | 611109 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | - | Thevur S.O (Nagapattinam) | Nagapattinam H.O |
| 304. | Sengamangalam B.O | 611108 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | - | Sikkal S.O (Nagapattinam) | Nagapattinam H.O |
| 305. | Serudur B.O | 611111 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Kilvelur | Nagapattinam | - | Vailankanni S.O | Nagapattinam H.O |
| 306. | Serunallur B.O | 611105 | Branch Post Office | Non-Delivery | Nagapattinam | Tiruchy | Tamilnadu | Kilvelur | Nagapattinam | - | Kuthur S.O | Nagapattinam H.O |
| 307. | Seshamoolai B.O | 609702 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | - | Tirumarugal S.O | Nagapattinam H.O |
| 308. | Sigar B.O | 610106 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Kilvelur | Nagapattinam | - | Thappalampuliyur S.O | Tiruvarur H.O |
| 309. | Sikkal S.O (Nagapattinam) | 611108 | Sub Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | 04365-245429 | - | Nagapattinam H.O |
| 310. | Sithaimur B.O | 610203 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Tirukuvalai | Nagapattinam | - | Ponnirai S.O | Tiruvarur H.O |
| 311. | Solavidyapuram B.O | 611103 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Kilvelur | Nagapattinam | - | Kilaiyur (Tiruvarur) S.O | Nagapattinam H.O |
| 312. | Suramangalam B.O | 610201 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Thirukkuvalai | Nagapattinam | - | Kachanam S.O | Tiruvarur H.O |
| 313. | Terkupanaiyur B.O | 610207 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Kilvelur | Nagapattinam | - | Valivalam S.O | Tiruvarur H.O |
| 314. | Terkupoigainallur B.O | 611111 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | - | Vailankanni S.O | Nagapattinam H.O |
| 315. | Thevur S.O (Nagapattinam) | 611109 | Sub Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Kilvelur | Nagapattinam | 04366-293130 | - | Nagapattinam H.O |
| 316. | Tiruchenkattangudi B.O | 609704 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | - | Tirukannapuram S.O | Tiruvarur H.O |
| 317. | Tirukannangudi B.O | 611104 | Branch Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Kilvelur | Nagapattinam | - | Kilvelur S.O | Nagapattinam H.O |
| 318. | Tirukannapuram S.O | 609704 | Sub Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | 04365-242055 | - | Tiruvarur H.O |
| 319. | Tirukuvalai S.O | 610204 | Sub Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Tirukuvalai | Nagapattinam | 04366-245499 | - | Tiruvarur H.O |
| 320. | Tirumarugal S.O | 609702 | Sub Post Office | Delivery | Nagapattinam | Tiruchy | Tamilnadu | Nagapattinam | Nagapattinam | 04366-270440 | - | Nagapattinam H.O |
