PIN code 688003 – Alappuzha, Kerala

688003 is the PIN code of 2 post offices in Alappuzha district, Kerala, served by the Sanathanapuram SO sub office.

Post office	Type	Delivery	Division
Sanathanapuram SOMap	Post office	Yes	Alleppey Division
Vadackal BOMap	Branch office	Yes	Alleppey Division

Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.