| Sr. No. | Office Name | Pincode | Office Type Status | Delivery Status | Division | Region | Circle | Taluk | District Name | Telephone | Related Sub Office | Related Head office |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 341. | Siddharajakandigai B.O | 601201 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundi | Tiruvallur | - | Gummidipundi S.O | Ambattur H.O |
| 342. | Sirupulalpettai B.O | 601201 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundi | Tiruvallur | - | Gummidipundi S.O | Ambattur H.O |
| 343. | Soranjeri B.O | 600072 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | Pattabiram S.O | Avadi Camp H.O |
| 344. | Spicto Industrial Estate S.O | 601201 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipoondi | Tiruvallur | - | - | Ambattur H.O |
| 345. | Srinivasanagar B.O | 600049 | Branch Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | Villivakkam S.O | Ambattur H.O |
| 346. | Subbareddypalayam B.O | 600120 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | North Chennai Thermal PP S.O | Ambattur H.O |
| 347. | Sunnambukulam B.O | 601201 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundi | Tiruvallur | - | Gummidipundi S.O | Ambattur H.O |
| 348. | Tank Factory Avadi S.O | 600054 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | 044-26378031 | - | Avadi Camp H.O |
| 349. | Tervali B.O | 601201 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundii | Tiruvallur | - | Gummidipundi S.O | Ambattur H.O |
| 350. | Thandarai S.O | 600072 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | - | Avadi Camp H.O |
| 351. | Thanipoondi B.O | 601202 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundi | Tiruvallur | - | Madarpakkam S.O | Ambattur H.O |
| 352. | Thervoy B.O | 601202 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundi | Tiruvallur | - | Madarpakkam S.O | Ambattur H.O |
| 353. | Thirumushi S.O | 600124 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | 044-26810405 | - | Avadi Camp H.O |
| 354. | Thirupalavanam B.O | 601205 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Pulicat S.O | Ambattur H.O |
| 355. | Thiruvengadnagar B.O | 600053 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | Vijayalakshmipuram S.O | Ambattur H.O |
| 356. | Thiruverkadu S.O | 600077 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | 044-26802099 | - | Avadi Camp H.O |
| 357. | Thriuvellavoyal B.O | 601203 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Minjur S.O | Ambattur H.O |
| 358. | Tirumangalam Road S.O | 600049 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | - | Ambattur H.O |
| 359. | Tirumullaivoyal S.O | 600062 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | 044-26385420 | - | Avadi Camp H.O |
| 360. | Tiruvottiyur S.O | 600019 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | 044-25733502 | - | Ambattur H.O |
