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Tamil Nadu / Chengalpattu / Vallam SO / 603003
Circle Name Tamilnadu Circle
Region Name Chennai City Region
Division Name Chengalpattu Division
Office Name Vallam SO
PIN Code 603003
Office Type PO
District Chengalpattu
State Tamil Nadu
Location for Vallam SO, Chengalpattu, Tamil Nadu, 603003
Post Offices with same PIN Code
603003 - Meleripakkam BO - Tamil Nadu
603003 - Nenmeli BO - Tamil Nadu
603003 - Tiruvadisoolam BO - Tamil Nadu
603003 - Vallam SO - Tamil Nadu


A Postal Index Number (PIN or PIN Code) refers to a six-digit code in the Indian postal code system used by India Post.

The PIN system was introduced on 15 August 1972. The first digit of a PIN indicates the zone, the second indicates the sub-zone, and the third, combined with the first two, indicates the sorting district within that zone. The final three digits are assigned to individual post offices within the sorting district.


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