PIN code 603209 – Chengalpattu, Tamil Nadu

603209 is the PIN code of 2 post offices in Chengalpattu district, Tamil Nadu, served by the Maraimalai Nagar SO sub office.

Post office	Type	Delivery	Division
Maraimalai Nagar SOMap	Post office	Yes	Chengalpattu Division
Panangottur BOMap	Branch office	Yes	Chengalpattu Division

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