| Sr. No. | Office Name | Pincode | Office Type Status | Delivery Status | Division | Region | Circle | Taluk | District Name | Telephone | Related Sub Office | Related Head office |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 341. | Reddiarpalayam B.O | 606708 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Chengam | Tiruvannamalai | - | Tanipadi S.O | Tiruvannamalai H.O |
| 342. | S Sorpanandal B.O | 606706 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Chengam | Tiruvannamalai | - | Sathanurdam S.O | Tiruvannamalai H.O |
| 343. | Saduperipalayam B.O | 606907 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Polur | Tiruvannamalai | - | Vadamadimangalam S.O | Tiruvannamalai H.O |
| 344. | Saidapettai Arni S.O | 632301 | Sub Post Office | Non-Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Arani | Tiruvannamalai | 04175-253067 | - | Arni H.O |
| 345. | Salukkai B.O | 604408 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Vandavasi | Tiruvannamalai | - | Vandavasi S.O | Arni H.O |
| 346. | Salvedu B.O | 604403 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Vandavasi | Tiruvannamalai | - | Kilkodungalur S.O | Arni H.O |
| 347. | Sanikkavadi B.O | 606803 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Polur | Tiruvannamalai | - | Polur S.O (Tiruvannamalai) | Tiruvannamalai H.O |
| 348. | Sanipundi B.O | 606755 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Tvmalai | Tiruvannamalai | - | Avur S.O | Tiruvannamalai H.O |
| 349. | Santhavasal S.O | 606905 | Sub Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Polur | Tiruvannamalai | 04175-253067 | - | Tiruvannamalai H.O |
| 350. | Saron B.O | 606601 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Tiruvannamalai | Tiruvannamalai | - | Ayyankulam S.O | Tiruvannamalai H.O |
| 351. | Sathanur B.O | 606706 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Chengam | Tiruvannamalai | - | Sathanurdam S.O | Tiruvannamalai H.O |
| 352. | Sathanurdam S.O | 606706 | Sub Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Chengam | Tiruvannamalai | 04188-248226 | - | Tiruvannamalai H.O |
| 353. | Sathiyaviziyanagaram S.O | 632317 | Sub Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | - | Tiruvannamalai | 04173-226913 | - | Arni H.O |
| 354. | Sattapundi B.O | 604501 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Vandavasi | Tiruvannamalai | - | Desur S.O | Arni H.O |
| 355. | Sedarampattu B.O | 632315 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Arni | Tiruvannamalai | - | Onnupuram S.O | Arni H.O |
| 356. | Semmambadi B.O | 632313 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Vandavasi | Tiruvannamalai | - | Kolappalur S.O (Tiruvannamalai) | Arni H.O |
| 357. | Semmiyamangalam B.O | 606904 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Polur | Tiruvannamalai | - | Mandakolathur S.O | Tiruvannamalai H.O |
| 358. | Senal B.O | 604406 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Vandavasi | Tiruvannamalai | - | Tellar S.O | Arni H.O |
| 359. | Sengadu B.O | 604505 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Vandavasi | Tiruvannamalai | - | Vallam Arni S.O | Arni H.O |
| 360. | Sengattankundil B.O | 604407 | Branch Post Office | Delivery | Tiruvannamalai | Chennai Region | Tamilnadu | Cheyyar | Tiruvannamalai | - | Tiruvettipuram S.O | Arni H.O |
