Kalachowki S.O is the primary post office registered under PIN code 400033 in Mumbai, Maharashtra. This code sits within the Western Postal Region, with 5 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kalachowki S.O | SO | Sub Post Office |
| L B S N E collage S.O | SO | Sub Post Office |
| Reay Road S.O | SO | Sub Post Office |
| Tank Road S.O | SO | Sub Post Office |
| Cotton Exchange S.O | SO | Sub Post Office |
