In Siwan district, Bihar, PIN code 841406 is anchored by Basaowan BO, a Branch Post Office. Mail addressed to this code is sorted through the Eastern Postal Region, across 16 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Basaowan BO | BO | Branch Post Office |
| Jagatpur BO | BO | Branch Post Office |
| Kauria BO | BO | Branch Post Office |
| Sughri BO | BO | Branch Post Office |
| Basantpur SO Siwan | OTHER | post office |
| Hussaipurnand BO | BO | Branch Post Office |
| Mohmda Bazar BO | BO | Branch Post Office |
| Sekhpura BO | BO | Branch Post Office |
| Sahrkola BO | BO | Branch Post Office |
| Baghi BO | BO | Branch Post Office |
| Chorma BO | BO | Branch Post Office |
| Kherwa BO | BO | Branch Post Office |
| Sohilpatti BO | BO | Branch Post Office |
| Baijubarhoga BO | BO | Branch Post Office |
| Chorauli BO | BO | Branch Post Office |
| Molnapur BO | BO | Branch Post Office |
