| Index no. | Post office Name | State name | District name | |
|---|---|---|---|---|
| 1 | A. Kiliyanur B.O | tamil-nadu | nagapattinam | |
| 2 | Achalpuram S.O | tamil-nadu | nagapattinam | |
| 3 | Adanur B.O | tamil-nadu | nagapattinam | |
| 4 | Agara Kondagai B.O | tamil-nadu | nagapattinam | |
| 5 | Agasthiampalli B.O | tamil-nadu | nagapattinam | |
| 6 | Akkaraipettai B.O | tamil-nadu | nagapattinam | |
| 7 | Akkur S.O (Nagapattinam) | tamil-nadu | nagapattinam | |
| 8 | Alakkudi B.O | tamil-nadu | nagapattinam | |
| 9 | Alangudi B.O | tamil-nadu | nagapattinam | |
| 10 | Alangudichery B.O | tamil-nadu | nagapattinam |