851117 PIN Code: Refinery Township, Begusarai, Bihar – Post Offices

PIN code: 851117
Main post office: Refinery Township (sub office)
District: Begusarai
State: Bihar
Postal division: Begusarai
Region and circle: East Region Bhagalpur, Bihar circle
Delivery: Delivery PIN (3 of 3 offices deliver)
Location: Open on a map (25.417, 86.129)

Post offices with PIN 851117

Post office	Type	Delivery
Refinery Township	Sub office	Delivers mail
Dumri	Branch office	Delivers mail
Nagdah	Branch office	Delivers mail

851117 covers 0 head offices, 1 sub office and 2 branch offices.

What the digits of 851117 mean

8: India Post's Eastern region, which covers Bihar and Jharkhand (1,274 PINs).
85: the Bihar postal circle; 145 PINs start with 85.
851: the sorting district, shared by 37 PINs in 2 districts.
117: the delivery post office within it, Refinery Township.

Head post office for 851117

The post offices with this PIN belong to the Begusarai postal division, whose head office is listed below. Money orders, savings accounts and complaints that a sub or branch office cannot settle go to the head office.

Begusarai head post office: 851101

Nearby PIN codes in Begusarai

All 32 PIN codes in Begusarai

Writing an address with 851117

Put the PIN on the last line, after the town and state, so the sorting machines and postmen can read it:

Name
House number, street
Refinery Township post office
Begusarai, Bihar – 851117

Frequently asked questions

Which post office has PIN code 851117?

3 post offices share it: Refinery Township, Dumri and Nagdah, in Begusarai district, Bihar.

Is 851117 a delivery PIN code?

Yes. All 3 of its post offices deliver mail; letters addressed to 851117 are delivered.

Which district is 851117 in?

Begusarai district, Bihar. It is in the Begusarai postal division (East Region Bhagalpur) of the Bihar postal circle.

What is the head post office for 851117?

The Begusarai postal division's head office is Begusarai (851101).

Sources

Last checked on 6 October 2026. PIN codes and post offices are from India Post’s directory on data.gov.in. Post offices are sometimes opened, merged or renamed; check with India Post before relying on a PIN for an official form.

851117 PIN code: Refinery Township, Begusarai