In Saran district, Bihar, PIN code 841421 is anchored by Gamahria BO, a Branch Post Office. Mail addressed to this code is sorted through the Eastern Postal Region, across 7 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Gamahria BO | BO | Branch Post Office |
| Rampur Atauli BO | BO | Branch Post Office |
| Sonauli BO | BO | Branch Post Office |
| Semri BO | BO | Branch Post Office |
| Amardah BO | BO | Branch Post Office |
| Sikati Bhikham BO | BO | Branch Post Office |
| Sarhwara SO | SO | Sub Post Office |
