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 Submit. These are also referred to as Zip codes or space codes and every of the six digits has a selected that means.

Temporary historical past

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

The necessity for such a system was realised as a result of confusion ensuing from the duplication of names of assorted locations throughout the nation, the usage of a number of languages to write down addresses, and alternative ways by which the title of a spot could possibly 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 practical zone for the Military). This geographical area is called a sorting district, which is headquartered on the fundamental submit workplace of the biggest metropolis within the area and known as the sorting workplace.


FOURTH DIGIT: Service routes

The fourth digit represents the route on which a supply submit workplace is situated throughout the sorting district. This digit is 0 for workplaces that are situated 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 submit 0ffice

The fifth and sixth digits collectively establish the precise post-office whose jurisdiction the tackle falls underneath. Ranging from 01, which signifies the Normal Submit Workplace (GPO) or head workplace (HO) within the space, this numbering is finished chronologically and better numbers are assigned to newer supply workplaces. If the quantity of mail dealt with at a supply workplace may be very massive, a brand new supply workplace is created and the following out there PIN is assigned to that workplace.

In consequence, any two supply workplaces located subsequent to one another in an space can have the primary 4 digits in widespread.

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