There are 7 post offices under PIN code 621105.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Irungalur S.O | Sub Office | Delivery | Trichy | Tiruchirappalli | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Konalai B.O | Branch Office | Delivery | Manachanallur | Tiruchirappalli | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Nedungur B.O | Branch Office | Delivery | Lalgudi | Tiruchirappalli | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Periyakurukkai B.O | Branch Office | Delivery | Trichy | Tiruchirappalli | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Reddimangudi B.O | Branch Office | Delivery | Trichy | Tiruchirappalli | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Siruganur B.O | Branch Office | Delivery | Trichy | Tiruchirappalli | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 7 | Tirupattur B.O | Branch Office | Delivery | Trichy | Tiruchirappalli | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |