PIN code 691541 – Kollam, Kerala

691541 is the PIN code of 3 post offices in Kollam district, Kerala, served by the Madathara SO sub office.

Post office	Type	Delivery	Division
Madathara SOMap	Post office	Yes	Quilon Division
Kollayil BOMap	Branch office	Yes	Quilon Division
Venkolla 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.