PIN code 600064 – Chengalpattu, Tamil Nadu

600064 is the PIN code of 2 post offices in Chengalpattu district, Tamil Nadu, served by the Chitlapakkam SO sub office.

Post office	Type	Delivery	Division
Chitlapakkam SOMap	Post office	Yes	Tambaram Division
Hasthinapuram SOMap	Post office	No	Tambaram Division

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