Avadaiyarkoil is Taluka (Tehsil) in Pudukkottai district of Tamil Nadu state. Avadaiyarkoil has 9 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 614618 | Amaradakki PIN Code | Pudukkottai | Avadaiyarkoil | Branch Office |
| 614629 | Idaiyur PIN Code | Pudukkottai | Avadaiyarkoil | Branch Office |
| 614629 | Kalabam PIN Code | Pudukkottai | Avadaiyarkoil | Branch Office |
| 614618 | Perumarudur PIN Code | Pudukkottai | Avadaiyarkoil | Branch Office |
| 614618 | Perunavalur PIN Code | Pudukkottai | Avadaiyarkoil | Branch Office |
| 614629 | Ponbethi PIN Code | Pudukkottai | Avadaiyarkoil | Sub Office |
| 614618 | Poovalur PIN Code | Pudukkottai | Avadaiyarkoil | Branch Office |
| 614629 | Thiruppunavasal PIN Code | Pudukkottai | Avadaiyarkoil | Branch Office |
| 614629 | Thiyathur PIN Code | Pudukkottai | Avadaiyarkoil | Branch Office |