| Office Name | Vallam S.O |
| Pincodes | 603003 |
| Area | Vallam |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Chengalpattu |
| Postal Region | Chennai Region |
| District | Kanchipuram |
| State | Tamil Nadu |
| Telephone No. | 044-27423535 |
| Office Name | Vallam S.O |
| Pincodes | 604206 |
| Area | Vallam |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Pondicherry |
| Postal Region | Chennai Region |
| District | Villupuram |
| State | Tamil Nadu |
| Telephone No. | Na |
| Office Name | Vallam B.O |
| Pincodes | 627809 |
| Area | Vallam |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Kovilpatti |
| Postal Region | Madurai |
| District | Tirunelveli |
| State | Tamil Nadu |
| Telephone No. | Na |
| Office Name | Vallam B.O |
| Pincodes | 623705 |
| Area | Vallam |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Ramanathapuram |
| Postal Region | Madurai |
| District | Ramanathapuram |
| State | Tamil Nadu |
| Telephone No. | Na |
| Office Name | Vallam B.O |
| Pincodes | 607805 |
| Area | Vallam |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Cuddalore |
| Postal Region | Tiruchy |
| District | Cuddalore |
| State | Tamil Nadu |
| Telephone No. | Na |
| Office Name | Vallam B.O |
| Pincodes | 621710 |
| Area | Vallam |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tiruchirapalli |
| Postal Region | Tiruchy |
| District | Ariyalur |
| State | Tamil Nadu |
| Telephone No. | Na |