Postal Index Number
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A Postal Index Number refers to a six-digit code in the Indian postal code system used by India Post.
A post box with its PIN marked on it
Postal code
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A postal code is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.
Postal Index Number
…A Postal Index Number (PIN; sometimes redundantly a 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 by Shriram Bhikaji Velankar, an additional secretary in the Government of…
Post office sign in Farrer, Australian Capital Territory, showing postcode 2607
1977 Soviet stamp promoting the use of postal codes