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Tamil Nadu / Thiruvallur / Arni CPT SO / 601101
Circle Name Tamilnadu Circle
Region Name Chennai City Region
Division Name Tambaram Division
Office Name Arni CPT SO
PIN Code 601101
Office Type PO
District Thiruvallur
State Tamil Nadu
Location for Arni CPT SO, Thiruvallur, Tamil Nadu, 601101
Post Offices with same PIN Code
601101 - Arni CPT SO - Tamil Nadu
601101 - Panayancheri BO - Tamil Nadu
601101 - Pondavakkam BO - Tamil Nadu
601101 - Rallapadi BO - 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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