There are 5 post offices under PIN code 621118.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Adaikkampatti B.O | Branch Office | Delivery | Kunnam | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Nakkasalem S.O | Sub Office | Delivery | Kunnam | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Puduammapalayam B.O | Branch Office | Delivery | Turaiyur | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Siruvayalur B.O | Branch Office | Delivery | Perambalur | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Viralipattipudur B.O | Branch Office | Delivery | Kunnam | Perambalur | Srirangam | Tiruchy | Tamil Nadu | Tamilnadu |