Charna BO is the primary post office registered under PIN code 173032 in Sirmaur, Himachal Pradesh. This code sits within the Northern Postal Region, with 8 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Charna BO | BO | Branch Post Office |
| Badol BO | BO | Branch Post Office |
| Bhalona BO | BO | Branch Post Office |
| Shivpur BO | BO | Branch Post Office |
| Bhawai BO | BO | Branch Post Office |
| Sangana BO | BO | Branch Post Office |
| Korag BO | BO | Branch Post Office |
| Haripurdhar | OTHER | post office |
