Asaon is located in the district of Siwan, Bihar. The pincode of Asaon is 841287. The area "Asaon" lies under takula of Siwan and has a Sub Office. Asaon comes under the head office Siwan. The postal division for pin code 841287 is Siwan.
| Area | Asaon |
| Pincode | 841287 |
| Taluka or Tehsil | Siwan |
| District | Siwan |
| State | Bihar |
| Office Status | Sub Office |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| Sub Office | NA |
| Head Office | Siwan |
| Contact Address | Postmaster, Post Office Asaon (Sub Office), Siwan, Bihar, India, Pin Code: 841287 |
| Telephone | 06154-111111 |
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 841287 | Asaon pin code | Siwan | Siwan | Sub Office |
| 841287 | Kandhpakar pin code | Siwan | Siwan | Branch Office |
| 841287 | Kashila pin code | Siwan | Siwan | Branch Office |
| 841287 | Pihuli pin code | Siwan | Siwan | Branch Office |
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