PIN code 691585 – Kollam, Kerala

691585 is the PIN code of 2 post offices in Kollam district, Kerala, served by the Mukundapuram SO sub office.

Post office	Type	Delivery	Division
Mukundapuram SOMap	Post office	Yes	Quilon Division
Puthukkadukara 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.