There are 5 post offices under PIN code 632404.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Karai S.O | Sub Office | Delivery | Walajapet | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Manthangal B.O | Branch Office | Delivery | Wallajah | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Puliyankannu B.O | Branch Office | Non-Delivery | Walajapet | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 4 | Thengal B.O | Branch Office | Delivery | Walajapet | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 5 | Vanapadi B.O | Branch Office | Delivery | Walajapet | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |