| Office Name | Kamarajnagar B.O |
| Pincodes | 600057 |
| Area | Kamarajnagar |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tambaram |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | Na |
| Office Name | Kamarajnagar S.O |
| Pincodes | 600071 |
| Area | Kamarajnagar |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Tambaram |
| Postal Region | Chennai Region |
| District | Tiruvallur |
| State | Tamil Nadu |
| Telephone No. | 044-26555754 |
| Office Name | Kamarajnagar B.O |
| Pincodes | 636202 |
| Area | Kamarajnagar |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Salem West |
| Postal Region | Coimbatore |
| District | Salem |
| State | Tamil Nadu |
| Telephone No. | Na |