PIN code 691535 – Kollam, Kerala

691535 is the PIN code of 2 post offices in Kollam district, Kerala, served by the Nilamel SO sub office.

Post office	Type	Delivery	Division
Nilamel SOMap	Post office	Yes	Quilon Division
Kaithode 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.