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Pin Code or Postal Codes of India

A PIN Code (Postal Index Number) is a numerical code used by postal services to simplify the sorting and delivery of mail. Introduced by the Indian Postal Service on 15 August 1972, the PIN code system helps in efficient mail delivery across India.

Structure of a PIN Code

A PIN Code consists of six digits, each representing a specific geographical region:

1. First Digit – Represents the region (Zone)
2. Second Digit – Represents the sub-region (Circle)
3. Third Digit – Represents the sorting district
4. Last Three Digits – Represent the specific post office

Postal Zones in India

There are nine postal zones in the country of which eight are regional and one is used for the Indian Army. The first digit of the PIN code designates the zone and is used across the 9 zones or regions that are spread across India:

PIN Code 1st Digits	Zone or Region
1	Chandigarh, Himachal Pradesh, Jammu & Kashmir, Haryana, Punjab, Delhi
2	Uttar Pradesh, Uttarakhand
3	Dadra & Nagar Haveli, Daman & Diu, Rajasthan, Gujarat
4	Chhattisgarh, Madhya Pradesh, Maharashtra, Goa
5	Telangana, Andhra Pradesh, Karnataka
6	Puducherry, Lakshadweep, Tamil Nadu, Kerala
7	Andaman & Nicobar Islands, Sikkim, Assam, Meghalaya, Mizoram, Tripura, Manipur, Arunachal Pradesh, Nagaland, West Bengal, Odisha
8	Bihar, Jharkhand
9	Field Post Office (FPO), Army Post Office (APO)

Postal Circles in India

India is divided into 23 Postal Circles. One state can have multiple postal circles and one postal circle can be sub-divided and shared amoung multiple states depending on the volume of mail handled in a region. Every state has one or more sorting districts or region which is headquartered at the main post office of the largest city in the region.

Circle / Region Name	ISO Code	PIN Code Prefix
Delhi	DL	11
Haryana	HR	12 – 13
Punjab	PB	14 – 15
Chandigarh	CH	16
Himachal Pradesh	HP	17
Jammu & Kashmir	JK	18 – 19
Uttar Pradesh, Uttarakhand	UP, UK	20 – 28
Rajasthan	RT	30 – 34
Gujarat	GJ	36 – 39
Daman & Diu	DD	396210
Dadra & Nagar Haveli	DN	396
Maharashtra	MH	40 – 44
Goa	GA	403
Madhya Pradesh	MP	45 – 48
Chhattisgarh	CT	49
Telangana	TG	50
Andhra Pradesh	AP	51 – 53
Karnataka	KA	56 – 59
Tamil Nadu	TN	60 – 64
Puducherry	PY	605
Kerala	KL	67 – 69
Lakshadweep	LD	682
West Bengal	WB	70 – 74
Sikkim	SK	737
Andaman & Nicobar	AN	744
Orissa	OR	75 – 77
Assam	AS	78
Arunachal Pradesh	AR	790 – 792
Manipur	MN	795
Meghalaya	ML	793 – 794
Mizoram	MZ	796
Nagaland	NL	797 – 798
Tripura	TR	799
Bihar	BR	80 – 85
Jharkhand	JH	80 – 83, 92
Army Postal Service	APS	90 – 99