| Sr. No. | Office Name | Pincode | Office Type Status | Delivery Status | Division | Region | Circle | Taluk | District Name | Telephone | Related Sub Office | Related Head office |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 321. | Poonamallee S.O | 600056 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamalee | Tiruvallur | 044-26272492 | - | Avadi Camp H.O |
| 322. | Pozhal S.O | 600066 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | 044-26590050 | - | Ambattur H.O |
| 323. | Prithivipakkam S.O | 600053 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | - | Ambattur H.O |
| 324. | Puduchatram B.O | 600124 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | Thirumushi S.O | Avadi Camp H.O |
| 325. | Puduvoyal B.O | 601206 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Kavarapettai S.O | Ambattur H.O |
| 326. | Pulicat S.O | 601205 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | 044-27976473 | - | Ambattur H.O |
| 327. | Puvalambedu B.O | 601206 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Kavarapettai S.O | Ambattur H.O |
| 328. | Railway Carshed Complex S.O | 600062 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | - | Avadi Camp H.O |
| 329. | Rajajinagar B.O | 600049 | Branch Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | Villivakkam S.O | Ambattur H.O |
| 330. | Rallapadi B.O | 601101 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Arni CPT S.O | Ambattur H.O |
| 331. | Reddipalayam B.O | 601204 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Ponneri S.O | Ambattur H.O |
| 332. | Redhills S.O | 600052 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | 044-26310959 | - | Ambattur H.O |
| 333. | Roshanagaram B.O | 601202 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundi | Tiruvallur | - | Madarpakkam S.O | Ambattur H.O |
| 334. | Seemapuram South B.O | 601203 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Minjur S.O | Ambattur H.O |
| 335. | Sembarambakkam B.O | 600123 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | Nazarethpettai S.O | Avadi Camp H.O |
| 336. | Senneerkuppam B.O | 600056 | Branch Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | Poonamallee East S.O | Avadi Camp H.O |
| 337. | Senthilnagar S.O | 600062 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | - | Avadi Camp H.O |
| 338. | Shanmugapuram S.O | 600019 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | - | Ambattur H.O |
| 339. | Sholavaram S.O | 600067 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | 044-26330651 | - | Ambattur H.O |
| 340. | Sidco Estate S.O | 600098 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | 044-26251443 | - | Ambattur H.O |
