In Darbhanga district, Bihar, PIN code 846005 is anchored by Sonhaun BO, a Branch Post Office. Mail addressed to this code is sorted through the Eastern Postal Region, across 9 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Sonhaun BO | BO | Branch Post Office |
| Postal Traning Centre SO | SO | Sub Post Office |
| Lalsahpur BO | BO | Branch Post Office |
| BKAsthan BO | BO | Branch Post Office |
| Siso BO | BO | Branch Post Office |
| Sisodih BO | BO | Branch Post Office |
| Bariaul BO | BO | Branch Post Office |
| BBira BO | BO | Branch Post Office |
| Barhi BO | BO | Branch Post Office |
