| Post office | Customs House S.O |
| Pin code | 700001 |
| Office type | S.O |
| Taluk / city | Kolkata |
| District name | Kolkata |
| State name | West Bengal |
| Delivery status | Non-Delivery |
| Division name | Kolkata Central |
| Region name | Calcutta |
| Circle name | West Bengal |
| Related sub office | NA |
| Related head office | Kolkatta G.P.O. |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 700001 | Council House Street S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Customs House S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Khengrapatti S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Kolkatta G.P.O. | Kolkata | Kolkata | West Bengal |
| 700001 | Lalbazar S.O (Kolkata) | Kolkata | Kolkata | West Bengal |
| 700001 | New Secretariat Bldg. S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Radha Bazar S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Reserve Bank Building S.O | Kolkata | Kolkata | West Bengal |
| 700001 | R.N. Mukherjee Road S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Telephone Bhawan S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Treasury Building S.O | Kolkata | Kolkata | West Bengal |
| 700001 | W.B.Assembly House S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Writer's Building S.O | Kolkata | Kolkata | West Bengal |
| 700001 | Pollock Street S.O | NA | Kolkata | West Bengal |