Siwan is Taluka (Tehsil) in Gopalganj district of Bihar state. Siwan has 1 areas (postal offices).
Siwan may refer to
Sivan, a month of the Hebrew calendar
Siwan, Xichuan County (寺湾镇), a town in Xichuan County, Henan, China
Siwan District, in the state of Bihar, India
Siwan, Bihar, the headquarters of the district
Siwan (Lok Sabha constituency), a parliamentary constituency in Bihar, India
The Welsh form of Joan (first name)
Siwan or Joan, Lady of Wales, the wife and consort of Llywelyn the Great, Prince of Wales
Siwan (play), by Saunders Lewis
Sewant, beads used as a currency by Native Americans
Siwan (album), a musical orchestra project by Jon Balke, and featuring Amina Alaoui
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 841441 | Bhathwa PIN Code | Gopalganj | Siwan | Branch Office |