PIN code 691560 – Kollam, Kerala

691560 is the PIN code of 3 post offices in Kollam district, Kerala, served by the Kalayapuram SO sub office.

Post office	Type	Delivery	Division
Kalayapuram SOMap	Post office	Yes	Quilon Division
Mailom BOMap	Branch office	Yes	Quilon Division
Thamarakudy 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.