| Sr. No. | Office Name | Pincode | Office Type Status | Delivery Status | Division | Region | Circle | Taluk | District Name | Telephone | Related Sub Office | Related Head office |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 301. | Oragadam B.O | 600053 | Branch Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | Menambedu S.O | Ambattur H.O |
| 302. | Orakadu B.O | 600067 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Sholavaram S.O | Ambattur H.O |
| 303. | Padi S.O | 600050 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | 044-26241344 | - | Ambattur H.O |
| 304. | Padianallur S.O | 600052 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | - | - | Ambattur H.O |
| 305. | Palavedu B.O | 600055 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | Avadi IAF S.O | Avadi Camp H.O |
| 306. | Pallavada B.O | 601202 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundi | Tiruvallur | - | Madarpakkam S.O | Ambattur H.O |
| 307. | Pammadukulam B.O | 600052 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Redhills S.O | Ambattur H.O |
| 308. | Panayancheri B.O | 601101 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Arni CPT S.O | Ambattur H.O |
| 309. | Pandeeswaram B.O | 600055 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | Avadi IAF S.O | Avadi Camp H.O |
| 310. | Panjetti B.O | 601204 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Ponneri S.O | Ambattur H.O |
| 311. | Paruthipattu B.O | 600071 | Branch Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | - | Kamarajnagar S.O | Avadi Camp H.O |
| 312. | Pattabiram S.O | 600072 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | 044-26852655 | - | Avadi Camp H.O |
| 313. | Periaobulapuam B.O | 601201 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidipundi | Tiruvallur | - | Gummidipundi S.O | Ambattur H.O |
| 314. | Perumbedu B.O | 601204 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Ponneri S.O | Ambattur H.O |
| 315. | Podiyarankulam B.O | 601201 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Gummidpundi | Tiruvallur | - | Gummidipundi S.O | Ambattur H.O |
| 316. | Pondavakkam B.O | 601101 | Branch Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | Arni CPT S.O | Ambattur H.O |
| 317. | Ponneri Public Office S.O | 601204 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | - | - | Ambattur H.O |
| 318. | Ponneri S.O | 601204 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ponneri | Tiruvallur | 044-27972258 | - | Ambattur H.O |
| 319. | Ponniammanmedu S.O | 600110 | Sub Post Office | Delivery | Tambaram | Chennai Region | Tamilnadu | Ambattur | Tiruvallur | 044-25561323 | - | Ambattur H.O |
| 320. | Poonamallee East S.O | 600056 | Sub Post Office | Non-Delivery | Tambaram | Chennai Region | Tamilnadu | Poonamallee | Tiruvallur | 044-26492994 | - | Avadi Camp H.O |
