It’s how India’s PIN Codes work

What are PIN codes?

PIN or Postal Index Quantity codes, are 6-digit codes that are a part of the postal workplace numbering system utilized by India Publish. These are also called Zip codes or space codes and every of the six digits has a specific that means.

Transient historical past

The PIN Code system was launched in India by Shriram Bhikaji Velankar, who had served as an extra secretary within the Union ministry of communications. Its implementation started from August 15, 1972, with the target of simplifying the sorting of mails, dashing up mail transmission and supply.

The necessity for such a system was realised because of the confusion ensuing from the duplication of names of assorted locations throughout the nation, the usage of a number of languages to put in writing addresses, and other ways wherein the identify of a spot might be spelt. For instance, in Tamil Nadu, names like Mettur and Aathur are quite common. PIN codes assist postmen ship the letters to proper individuals.

FIRST DIGIT: Postal zone SECOND DIGIT: Sub-zone/ state or Union territory

The primary digit signifies postal zones which vary from 1 to 9. There are 9 postal zones in India. The postal zones are additional divided into sub-regions, that are denoted by the second digit. The sub-regions are sometimes the states or Union territories. It’s indicated as:

THIRD DIGIT: Sorting district

Mixed with first two digits, the third one factors to particular geographical areas (besides within the case of the purposeful zone for the Military). This geographical area is called a sorting district, which is headquartered on the fundamental put up workplace of the most important metropolis within the area and known as the sorting workplace.


FOURTH DIGIT: Service routes

The fourth digit represents the route on which a supply put up workplace is positioned inside the sorting district. This digit is 0 for places of work that are positioned within the core space of the sorting district. The third and fourth digit mixed zoom in on the mail-sorting district inside every state.

LAST TWO DIGITS: Particular person put up 0ffice

The fifth and sixth digits collectively determine the precise post-office whose jurisdiction the deal with falls below. Ranging from 01, which signifies the Common Publish Workplace (GPO) or head workplace (HO) within the space, this numbering is finished chronologically and better numbers are assigned to newer supply places of work. If the amount of mail dealt with at a supply workplace may be very massive, a brand new supply workplace is created and the following obtainable PIN is assigned to that workplace.

Because of this, any two supply places of work located subsequent to one another in an space may have the primary 4 digits in widespread.

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