A Postal Index Number (PIN), or sometimes redundantly a PIN
code,[note 1] is a code in the post office numbering or postal
code system used by
1 History 2 PIN structure
2.1 Postal zones 2.2 Sorting district 2.3 Service route 2.4 Delivery office
3 Delivery system 4 Notes 5 References 6 External links
History The PIN system was introduced on 15 August 1972 by Shriram Bhikaji Velankar, an additional secretary in the Union Ministry of Communications. The system was introduced to simplify the manual sorting and delivery of mail by eliminating confusion over incorrect addresses, similar place names, and different languages used by the public.
PIN structure 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.
Postal zones There are nine postal zones in India, including eight regional zones and one functional zone (for the Indian Army). The first digit of a PIN indicates the zone and is allocated over the 9 zones as follows:
1st digit of PIN
Delhi, Haryana, Punjab, Himachal Pradesh, Jammu and Kashmir, Chandigarh
Uttar Pradesh, Uttarakhand
Rajasthan, Gujarat, Daman and Diu, Dadra and Nagar Haveli
Maharashtra, Goa, Madhya Pradesh, Chhattisgarh
Telangana, Andhra Pradesh, Karnataka
Tamil Nadu, Kerala, Puducherry, Lakshadweep
West Bengal, Odisha, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Andaman and Nicobar Islands, Assam, Sikkim
Army Post Office (APO), Field Post Office (FPO)
2-digit postcode areas in
Jammu and Kashmir
Uttar Pradesh, Uttarakhand
Daman and Diu
Dadra and Nagar Haveli
Andaman and Nicobar Islands
Army Postal Service
Service route The fourth digit represents the route on which a delivery office is located in the sorting district. This is 0 for offices in the core area of the sorting district.
Delivery office A post box with its PIN marked on it The last two digits represent the delivery office within the sorting district starting from 01 which would be the General Post Office (GPO) or head office (HO). The numbering of the delivery office is done chronologically with higher numbers assigned to newer delivery offices. If the volume of mail handled at a delivery office is too large, a new delivery office is created and the next available PIN is assigned. Thus, two delivery offices situated next to each other will only have the first four digits in common.
Delivery system Each PIN is mapped to exactly one delivery post office which receives all the mail to be delivered to one or more lower offices within its jurisdiction, all of which share the same code. The delivery office can either be a General Post Office (GPO), a head office (HO), or a sub-office (SO) which are usually located in urban areas. The post from the delivery office is sorted and routed to other delivery offices for a different PIN or to one of the relevant sub-offices or branch offices for the same PIN. Branch offices (BOs) are located in rural areas and have limited postal services.
^ Sometimes incorrectly written as "Pin code", "Pincode", "PINcode", or "pincode".
^ India. Publications Division, Ministry of Information and Broadcasting, Government of India. 1974. p. 305. Retrieved 17 May 2013..mw-parser-output cite.citation font-style:inherit .mw-parser-output .citation q quotes:"""""""'""'" .mw-parser-output .citation .cs1-lock-free a background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center .mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center .mw-parser-output .citation .cs1-lock-subscription a background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center .mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration color:#555 .mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span border-bottom:1px dotted;cursor:help .mw-parser-output .cs1-ws-icon a background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center .mw-parser-output code.cs1-code color:inherit;background:inherit;border:inherit;padding:inherit .mw-parser-output .cs1-hidden-error display:none;font-size:100% .mw-parser-output .cs1-visible-error font-size:100% .mw-parser-output .cs1-maint display:none;color:#33aa33;margin-left:0.3em .mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format font-size:95% .mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left padding-left:0.2em .mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right padding-right:0.2em
^ "Mails section". Indian government postal department. Retrieved 17 May 2013.[dead link]
^ "Using pincode, maps to trace address". timesofindia.com. Archived from the original on 2016-10-05.
^ a b "Tamilnadu Postal Circle – Pincode". tamilnadupost.nic.in. Archived from the original on 2014-07-20.
^ "Archived copy" (PDF). Archived (PDF) from the original on 2014-08-14. Retrieved 2014-08-14.CS1 maint: Archived copy as title (link)
^ "Archived copy" (PDF). Archived (PDF) from the original on 2014-05-30. Retrieved 2014-08-14.CS1 maint: Archived copy as title (link)
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