Kochas is Taluka (Tehsil) in Rohtas district of Bihar state. Kochas has 2 areas (postal offices). Kochas has a Sub Office and the PIN Code of Kochas is 821112.
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 821112 | Daidhan PIN Code | Rohtas | Kochas | Branch Office |
| 821112 | Kochas PIN Code | Rohtas | Kochas | Sub Office |