PIN code 691602 – Kollam, Kerala

691602 is the PIN code of 3 post offices in Kollam district, Kerala, served by the Kanjavely SO sub office.

Post office	Type	Delivery	Division
Kanjavely SOMap	Post office	Yes	Quilon Division
Ashtamudi BOMap	Branch office	Yes	Quilon Division
Prakkulam BOMap	Branch office	Yes	Quilon Division

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