Postal Index Numbers in INDIA - PIN Codes

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About Pin Code (Postal Index Number)

India is such a vast country with so many cities, towns and villages that finding the right place or person can be a real challenge for the Indian Postal Service (and for courier services). In order to make the process of delivering letters and parcels more efficient the Indian Postal service introduced the 6 digit Postal Index Number (PIN) Code on 15 August 1972.
The Indian Postal Service has designated 9 specific PIN regions across the country, out of which 8 are geographical regions and the 9th is reserved for the Indian Army. Structure of Pin Code (Postal Index Number)

Structure of Pin Code (Postal Index Number)

Each digit in the 6-digit number has a specific meaning. The first digit designates which is the overall geographical region, and the first 2 digits designate the postal circle or sub-region. The third digit designates the sorting district. Thus the first 3 digits collectively designate the postal district while the last 3 digits indicate the specific post office within the district.
Here's an example of decoding your pin code. The pin code of Central Delhi is 110001.
  • The first digit indicates: northern region = 1
  • The first 2 digits indicate: postal circle Delhi = 11
  • The third digit indicates: sorting district = 0
  • The last 3 digits indicate: the specific post office (Connaught Place) = 001
  • Thus the 6 digit pincode for Connaught Place in Central Delhi = 110001

GPO: General Post Office, HO: Head Office, SO: Sub Office, BO: Branch Office