Explore all post offices or pincodes of SIWAN, BIHAR
FAQs
Indian Postal Code FAQs:
Postal Index Number or PIN or Pincode is the numbering of the post office or post code system used by India Post.
The PINcode is 6 digits long. First digit reflects region, second the sub-region, third the sorting district, and last three represent the post office code.
India has nine PIN zones. And next tab have a table of all PIN zones as per the postal circle.
PO Stands for Post Office, BO stands for Branch Office, SO Stands for Sub Office and HO stands for Head Office. And these are the office types.
POSTAL CIRCLE
List of postal circle with PIN digits (First 2-digits)
| Postal Circle | 1st 2 Digits of PINcode |
| Delhi | 11 |
| Haryana | 12 - 13 |
| Punjab | 14 - 16 |
| Himachal Pradesh | 17 |
| Jammu & Kashmir | 18 - 19 |
| Uttar Pradesh | 20 - 28 |
| Rajasthan | 30 - 34 |
| Gujarat | 36 - 39 |
| Maharashtra | 40 - 44 |
| Madhya Pradesh | 45 - 48 |
| Chhattisgarh | 49 |
| Andhra Pradesh | 50 - 53 |
| TELANGANA | 50 - 53 |
| Karnataka | 56 - 59 |
| Tamil Nadu | 60 - 64 |
| Kerala | 67 - 69 |
| Lakshadweep | 682 |
| West Bengal | 70 - 74 |
| Andaman & Nicobar | 744 |
| Orissa | 75 - 77 |
| Assam | 78 |
| Arunachal Pradesh | 79 |
| Manipur | 79 |
| Meghalaya | 79 |
| Mizoram | 79 |
| Nagaland | 79 |
| Tripura | 79 |
| Bihar | 80-85 |
| Jharkhand | 80-83 |
| Army Postal Service (APS) | 90-99 |
POSTAL REGION
List of postal region with PIN digit (First digit)
| First Digit | Region | States Covered |
|---|---|---|
| 1 | Northern | Delhi, Haryana, Punjab, Himachal Pradesh and Jammu & Kashmir |
| 2 | Northern | Uttar Pradesh and Uttaranchal |
| 3 | Western | Rajasthan and Gujarat |
| 4 | Western | Maharashtra, Madhya Pradesh and Chattisgarh |
| 5 | Southern | Andhra Pradesh and Karnataka |
| 6 | Southern | Kerala and Tamil Nadu |
| 7 | Eastern | West Bengal, Orissa and North Eastern |
| 8 | Eastern | Bihar and Jharkand |
| 9 | APS | Army Postal Service |