There are 10 post offices under PIN code 614404.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Aravoor B.O | Branch Office | Delivery | Nidamangalam | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Chittamalli-nid B.O | Branch Office | Delivery | Nidamangalam | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Manickamangalam B.O | Branch Office | Delivery | Valangaman | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Mullaivasal B.O | Branch Office | Delivery | Nidamangalam | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 5 | Narasingamangalam B.O | Branch Office | Delivery | Nidamangalam | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 6 | Narthangudi B.O | Branch Office | Delivery | Valangaman | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 7 | Nidamangalam Bazaar B.O | Branch Office | Non-Delivery | Needamangalam | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 8 | Nidamangalam S.O | Sub Office | Delivery | Nidamangalam | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 9 | Olimidi B.O | Branch Office | Delivery | Nidamangalam | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |
| 10 | Perambur B.O | Branch Office | Delivery | Nidamangalam | Tiruvarur | Thanjavur | Tiruchy | Tamil Nadu | Tamilnadu |