There are 6 post offices under PIN code 621113.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ayilur B.O | Branch Office | Delivery | Perambalur | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Eraiyur B.O | Branch Office | Delivery | Perambalur | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Kalpadi B.O | Branch Office | Delivery | Perambalur | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Siruganpur B.O | Branch Office | Delivery | Kunnam | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Siruvachur S.O | Sub Office | Delivery | Perambalur | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Varagupadi B.O | Branch Office | Delivery | Kunnam | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |