| Post office | Old College Buildings S.O |
| Pin code | 600006 |
| Office type | S.O |
| Taluk / city | Chennai |
| District name | Chennai |
| State name | Tamil Nadu |
| Delivery status | Non-Delivery |
| Division name | Chennai City Central |
| Region name | Chennai Region |
| Circle name | Tamilnadu |
| Related sub office | NA |
| Related head office | Thygarayanagar H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 600006 | Greams Road S.O | Chennai | Chennai | Tamil Nadu |
| 600006 | Old College Buildings S.O | Chennai | Chennai | Tamil Nadu |
| 600006 | Shastri Bhavan S.O | Chennai | Chennai | Tamil Nadu |
| 600006 | Teynampet West S.O | Chennai | Chennai | Tamil Nadu |