PIN code 841446 – Siwan, Bihar

841446 is the PIN code of 2 post offices in Siwan district, Bihar, served by the Narendrapur SO sub office.

Post office	Type	Delivery	Division
Narendrapur SOMap	Post office	Yes	Siwan Division
Gaziapur BOMap	Branch office	Yes	Siwan Division

Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.