PIN code 691573 – Kollam, Kerala

691573 is the PIN code of 3 post offices in Kollam district, Kerala, served by the Adichanallur SO sub office.

Post office	Type	Delivery	Division
Adichanallur SOMap	Post office	Yes	Quilon Division
Kummallur BOMap	Branch office	Yes	Quilon Division
Velichikala 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.