PIN code 691011 – Kollam, Kerala

691011 is the PIN code of 2 post offices in Kollam district, Kerala, served by the Eravipuram SO sub office.

Post office	Type	Delivery	Division
Eravipuram SOMap	Post office	Yes	Quilon Division
Valathungal 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.