| Post office | Kallathur Thandalai S.O |
| Pin code | 621803 |
| Office type | S.O |
| Taluk / city | Udayarpalayam |
| District name | Ariyalur |
| State name | Tamil Nadu |
| Delivery status | Delivery |
| Division name | Tiruchirapalli |
| Region name | Tiruchy |
| Circle name | Tamilnadu |
| Related sub office | NA |
| Related head office | Lalgudi H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 621803 | Eravangudi B.O | Jayamkondcholapuram | Ariyalur | Tamil Nadu |
| 621803 | Vadugarpalayam B.O | Jayamkondocholapuram | Ariyalur | Tamil Nadu |
| 621803 | Vettiarvettu B.O | Jayamkondocholapuram | Ariyalur | Tamil Nadu |
| 621803 | Anikduichan B.O | Udayarpalayam | Ariyalur | Tamil Nadu |
| 621803 | Kallathur Thandalai S.O | Udayarpalayam | Ariyalur | Tamil Nadu |
| 621803 | Kalleri B.O | Udayarpalayam | Ariyalur | Tamil Nadu |
| 621803 | Kattathur B.O | Udayarpalayam | Ariyalur | Tamil Nadu |
| 621803 | Koovathur B.O | Udayarpalayam | Ariyalur | Tamil Nadu |
| 621803 | Kulathur B.O | Udayarpalayam | Ariyalur | Tamil Nadu |
| 621803 | Kumiliankuli B.O | Udayarpalayam | Ariyalur | Tamil Nadu |
| 621803 | Vizhapallam B.O | Udayarpalayam | Ariyalur | Tamil Nadu |
| 621803 | Z.Melur B.O | Udayarpalayam | Ariyalur | Tamil Nadu |