Chainpur So Siwan — Pincode 841203
Siwan, Bihar
📍 Location Map — Pincode 841203
Shaded area shows approximate coverage. Map data © OpenStreetMap contributors.
🏤 Post Offices under Pincode 841203
| Office Name | Type | Delivery | District |
|---|---|---|---|
| Chainpur So Siwan | PO | ✓ Yes | Siwan |
| Bakhari Bo | BO | ✓ Yes | Siwan |
| Chhitauli Bo | BO | ✓ Yes | Siwan |
| Ramgarh Bo | BO | ✓ Yes | Siwan |
| Sarhara Bo | BO | ✓ Yes | Siwan |
| Ansar Bo | BO | ✓ Yes | Siwan |
| Jagdishpur Bo | BO | ✓ Yes | Siwan |
| Bangra Ke Bari Bo | BO | ✓ Yes | Siwan |
| Dighwalia Bo | BO | ✓ Yes | Siwan |
| Nandamura Bo | BO | ✓ Yes | Siwan |
🔢 How Pincode 841203 is Constructed
Every Indian PIN (Postal Index Number) code is a 6-digit number. Each digit group encodes geographic and administrative information about the delivery area.
The first digit identifies one of India's 9 postal zones. Zone 8 covers Bihar, Jharkhand.
The first two digits together (84) identify the sub-zone. All pincodes in Bihar begin with 84.
The third digit narrows to a sorting district. The prefix 841 routes mail to the sorting office serving Siwan in Bihar.
Digits 4–5 identify the delivery route or sub-area within the sorting district. Route 20 identifies the specific delivery area within Siwan.
The final digit identifies the specific post office. Office 3 designates Chainpur So Siwan in Siwan.
❓ Frequently Asked Questions
What is the pincode for Chainpur So Siwan?
The pincode for Chainpur So Siwan is 841203. It is a PO located in Siwan, Bihar.
How many post offices are in pincode 841203?
There are 10 post offices operating under pincode 841203 in Siwan, Bihar.
Is delivery available at pincode 841203?
Yes, delivery is available at pincode 841203 through Chainpur So Siwan and its associated offices.
Which district does pincode 841203 belong to?
Pincode 841203 is located in Siwan district in the state of Bihar. It falls under the Bihar postal circle.
What postal zone is pincode 841203 in?
Pincode 841203 falls in Zone 8 — Eastern India. The sub-zone prefix 84 corresponds to Bihar.
🏤 Types of Post Offices in India
India Post operates a hierarchical network. Pincode 841203 is served by a PO.
The primary administrative hub for a postal division, overseeing all sub-offices and branch offices in its area.
The chief post office of a major city or state, handling the largest mail volume and often housing the Postmaster General.
Operates under an HPO, providing all standard postal services in urban and semi-urban areas.
The smallest tier, typically in rural areas. India has over 130,000 branch offices — the largest postal network in the world.