| Office Name | Central Building S.O |
| Pincodes | 400020 |
| Area | Central Building |
| Office Status | Sub Post Office |
| Postal Circle | Maharashtra |
| Postal Division | Mumbai South |
| Postal Region | Mumbai |
| District | Mumbai |
| State | Maharashtra |
| Telephone No. | 022-22074876 |
| Office Name | Churchgate S.O |
| Pincodes | 400020 |
| Area | Churchgate |
| Office Status | Sub Post Office |
| Postal Circle | Maharashtra |
| Postal Division | Mumbai South |
| Postal Region | Mumbai |
| District | Mumbai |
| State | Maharashtra |
| Telephone No. | 022-22041896 |
| Office Name | Marine Lines S.O |
| Pincodes | 400020 |
| Area | Marine Lines |
| Office Status | Sub Post Office |
| Postal Circle | Maharashtra |
| Postal Division | Mumbai South |
| Postal Region | Mumbai |
| District | Mumbai |
| State | Maharashtra |
| Telephone No. | 022-22002979 |