| Office Name | Seithur S.O |
| Pincodes | 626121 |
| Area | Seithur |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Virudhunagar |
| Postal Region | Madurai |
| District | Virudhunagar |
| State | Tamil Nadu |
| Telephone No. | 04562-243092 |
| Office Name | Seithur B.O |
| Pincodes | 609601 |
| Area | Seithur |
| Office Status | Branch Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Nagapattinam |
| Postal Region | Tiruchy |
| District | Karaikal |
| State | Pondicherry |
| Telephone No. | Na |