Andar is Taluka (Tehsil) in Siwan district of Bihar state. Andar has 2 areas (postal offices). Andar has a Sub Office and the PIN Code of Andar is 841231.
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 841231 | Andar PIN Code | Siwan | Andar | Sub Office |
| 841502 | Patar PIN Code | Siwan | Andar | Branch Office |