Dhamsain BO is the primary post office registered under PIN code 847405 in Darbhanga, Bihar. This code sits within the Eastern Postal Region, with 12 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Dhamsain BO | BO | Branch Post Office |
| Sahjauli BO | BO | Branch Post Office |
| Kurso Nadiami SO | SO | Sub Post Office |
| Tumaul BO | BO | Branch Post Office |
| Dhamuara BO | BO | Branch Post Office |
| Gorkha BO | BO | Branch Post Office |
| Thengaha BO | BO | Branch Post Office |
| Alinagar BO | BO | Branch Post Office |
| Dadpatti BO | BO | Branch Post Office |
| Dasauth BO | BO | Branch Post Office |
| Jaideopatti BO | BO | Branch Post Office |
| NN Patti BO | BO | Branch Post Office |
