| Post office | Ulundai B.O |
| Pin code | 602105 |
| Office type | B.O |
| Taluk / city | Thiruvallur |
| District name | Tiruvallur |
| State name | Tamil Nadu |
| Delivery status | Delivery |
| Division name | Kanchipuram |
| Region name | Chennai Region |
| Circle name | Tamilnadu |
| Related sub office | Sriperumbudur S.O |
| Related head office | Kanchipuram H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 602105 | Pattunoolchatram S.O | NA | Kanchipuram | Tamil Nadu |
| 602105 | Gunduperumbedu B.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Mathur B.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Pennalur B.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Pillaipakkam B.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Pondur B.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Sriperumbudur S.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Thandalam B.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Valarpuram B.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Vayalur B.O | Sriperumbudur | Kanchipuram | Tamil Nadu |
| 602105 | Thodukadu B.O | Thiruvallur | Tiruvallur | Tamil Nadu |
| 602105 | Ulundai B.O | Thiruvallur | Tiruvallur | Tamil Nadu |