There are 11 post offices under PIN code 621715.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Alagiamanavalam B.O | Branch Office | Delivery | Lalgudi | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Elakurichi B.O | Branch Office | Delivery | Lalgudi | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Kamarasavalli B.O | Branch Office | Delivery | Lalgudi | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Kilakavattankurichi B.O | Branch Office | Delivery | Lalgudi | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Kilakolathur B.O | Branch Office | Delivery | Lalgudi | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Kovilur B.O | Branch Office | Delivery | Lalgudi | Tiruchirappalli | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 7 | Kuruvadi B.O | Branch Office | Delivery | Lalgudi | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 8 | Manjamedu Karaipakkam B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 9 | Sullangudi B.O | Branch Office | Delivery | Lalgudi | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 10 | Tirumanur S.O | Sub Office | Delivery | Lalgudi | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 11 | Tiruppeyar B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |