PIN code 784189 – Biswanath, Assam

784189 is the PIN code of 2 post offices in Biswanath district, Assam, served by the Karsontala S.O sub office.

Post office	Type	Delivery	Division
Karsontala S.OMap	Post office	Yes	Darrang Division
Nagsankar B.OMap	Branch office	Yes	Darrang Division

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