| Post Office | Alapakkam |
| Division | Cuddalore |
| Region | Tiruchy |
| Circle | Tamilnadu |
| Taluka | Chidambaram |
| District | Cuddalore |
| State | Tamil Nadu |
| Phone | 04142-217979 |
| Sub Office | NA |
| Head Office | Cuddalore H.O |
| Pincode |
608801
|
| Post Office | Ammapettai |
| Division | Cuddalore |
| Region | Tiruchy |
| Circle | Tamilnadu |
| Taluka | Chidambaram |
| District | Cuddalore |
| State | Tamil Nadu |
| Phone | NA |
| Sub Office | Vallampadugai S.O |
| Head Office | Chidambaram H.O |
| Pincode |
608401
|
| Post Office | Annamalai University |
| Division | Cuddalore |
| Region | Tiruchy |
| Circle | Tamilnadu |
| Taluka | Chidambaram |
| District | Cuddalore |
| State | Tamil Nadu |
| Phone | 04144-239496 |
| Sub Office | NA |
| Head Office | Chidambaram H.O |
| Pincode |
608002
|
| Post Office | Annamalainagar |
| Division | Cuddalore |
| Region | Tiruchy |
| Circle | Tamilnadu |
| Taluka | Chidambaram |
| District | Cuddalore |
| State | Tamil Nadu |
| Phone | 04144-238799 |
| Sub Office | NA |
| Head Office | Chidambaram H.O |
| Pincode |
608002
|
| Post Office | Ariyakoshti |
| Division | Cuddalore |
| Region | Tiruchy |
| Circle | Tamilnadu |
| Taluka | Chidambaram |
| District | Cuddalore |
| State | Tamil Nadu |
| Phone | NA |
| Sub Office | Parangipettai S.O |
| Head Office | Chidambaram H.O |
| Pincode |
608502
|
| Post Office | Ayyanur Akkaramangalam |
| Division | Cuddalore |
| Region | Tiruchy |
| Circle | Tamilnadu |
| Taluka | Chidambaram |
| District | Cuddalore |
| State | Tamil Nadu |
| Phone | NA |
| Sub Office | Orathur S.O |
| Head Office | Chidambaram H.O |
| Pincode |
608201
|