There are 11 post offices under PIN code 612904.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Idanganni B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Irugaiyur B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Kaduvettankurichi B.O | Branch Office | Delivery | Udayarpalayam | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Karaikurichi B.O | Branch Office | Delivery | Udayarpalayam | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Kargudi B.O | Branch Office | Delivery | Udayarpalayam | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Keelamichaelpatti B.O | Branch Office | Delivery | Udayarpalayam | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 7 | Kottiyal B.O | Branch Office | Delivery | Udayarpalayam | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 8 | Naduvalur B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 9 | Thathampettai Palur S.O | Sub Office | Delivery | Jayamkondacholapuram | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 10 | Thengachiperumalnatham B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 11 | Vazhaikurichi B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |