PIN code 686602 – Kottayam, Kerala

686602 is the PIN code of 2 post offices in Kottayam district, Kerala, served by the Kaipuzha SO sub office.

Post office	Type	Delivery	Division
Kaipuzha SOMap	Post office	Yes	Kottayam Division
Onamthuruthu BOMap	Branch office	Yes	Kottayam Division

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