PIN code 691003 – Kollam, Kerala

691003 is the PIN code of 2 post offices in Kollam district, Kerala, served by the Kavanad SO sub office.

Post office	Type	Delivery	Division
Kavanad SOMap	Post office	Yes	Quilon Division
Maruthadi 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.