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PIN code · Bihar
841439 PIN Code — Mustfabad, Siwan
Post office details
- PIN code
- 841439
- Post office
- Mustfabad
- District
- Siwan
- State / UT
- Bihar
- Delivery
- Delivery office
- Postal zone
- 8 — Bihar, Jharkhand
Speed Post charges from 841439
Parcel up to 500 g, ₹ before GST, tariff from 1 October 2025. Distance is straight-line, so routes near a band edge show a range.
| To | Distance | Speed Post (500 g) |
|---|---|---|
| Delhi (110001) | ~754 km | ₹82 |
| Mumbai (400001) | ~1,402 km | ₹86 |
| Kolkata (700001) | ~567 km | ₹82 |
| Chennai (600001) | ~1,483 km | ₹86 |
| Bengaluru (560001) | ~1,596 km | ₹86 |
| Hyderabad (500001) | ~1,118 km | ₹82–₹86 |
Other weight or route? Courier charges calculator
What 841439 means
- 1st digit (8) — postal zone: Bihar, Jharkhand
- First 3 digits (841) — the sorting district
- Last 3 digits (439) — the delivery post office
FAQ
What is the PIN code of Mustfabad?
The PIN code of Mustfabad (Siwan, Bihar) is 841439.
841439 is in which district and state?
PIN code 841439 is in Siwan district, Bihar.
Is 841439 a delivery PIN code?
Yes. India Post lists a delivery post office for 841439, so letters and parcels are delivered to addresses in this area.
What does Speed Post cost from 841439 to Delhi?
About ₹82 before GST for a parcel up to 500 g (Speed Post tariff from 1 October 2025). Check any route on the courier charges calculator.
How do I track a parcel sent to 841439?
Paste the tracking number (AWB) into CheckMyOrder — the courier is detected automatically. The PIN code isn't needed to track.
Source: All India Pincode Directory — Department of Posts (data.gov.in, Government Open Data License – India). One main post office is shown per PIN code; some PIN codes cover several post offices.