There are 6 post offices under PIN code 609603.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Kurumbagaram B.O | Branch Office | Delivery | Nedungadu Commune Panchayat | Karaikal | Nagapattinam | Tiruchy | Pondicherry | Tamilnadu |
| 2 | Melakasakudi B.O | Branch Office | Delivery | Nedungadu Commune Panchayat | Karaikal | Nagapattinam | Tiruchy | Pondicherry | Tamilnadu |
| 3 | Nallathur B.O | Branch Office | Delivery | Nedungadu Commune Panchayat | Karaikal | Nagapattinam | Tiruchy | Pondicherry | Tamilnadu |
| 4 | Nedungadu S.O | Sub Office | Delivery | Karaikal | Karaikal | Nagapattinam | Tiruchy | Pondicherry | Tamilnadu |
| 5 | Tirukottaram B.O | Branch Office | Delivery | Nannilam | Tiruvarur | Nagapattinam | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Velangudi B.O | Branch Office | Delivery | Nannilam | Tiruvarur | Nagapattinam | Tiruchy | Tamil Nadu | Tamilnadu |