| Office Name | Karnavur B.O |
| Pincodes | 631052 |
| Area | Karnavur |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Arakkonam |
| Postal Region | Chennai Region |
| District | Vellore |
| State | Tamil Nadu |
| Telephone No. | Na |
| Office Name | Karnavur B.O |
| Pincodes | 604302 |
| Area | Karnavur |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Pondicherry |
| Postal Region | Chennai Region |
| District | Villupuram |
| State | Tamil Nadu |
| Telephone No. | Na |