There are 10 post offices under PIN code 621710.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Kilamaligai B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Kuvagam B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Marudur B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Maruvathur B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | P.Kudikadu B.O | Branch Office | Delivery | Sendurai | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Ponparappi S.O | Sub Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 7 | Sedankudikadu B.O | Branch Office | Delivery | Sendurai | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 8 | Sirukalathur B.O | Branch Office | Delivery | Ariyalur | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 9 | Therkupatti B.O | Branch Office | Delivery | Sendurai | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 10 | Vallam B.O | Branch Office | Delivery | Sendurai | Ariyalur | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |