PIN code 600117 – Chengalpattu, Tamil Nadu

600117 is the PIN code of 2 post offices in Chengalpattu district, Tamil Nadu, served by the Keelakattalai SO sub office.

Post office	Type	Delivery	Division
Keelakattalai SOMap	Post office	No	Tambaram Division
Old Pallavaram SOMap	Post office	Yes	Tambaram Division

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