PIN code 691557 – Kollam, Kerala

691557 is the PIN code of 2 post offices in Kollam district, Kerala, served by the Chengamanad Jn SO sub office.

Post office	Type	Delivery	Division
Chengamanad Jn SOMap	Post office	Yes	Quilon Division
Kura 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.