Rosera
| Rosera Rusera Ghat | |
|---|---|
| Town | |
| Nickname(s): Rusera, Rusera Ghat | |
| Coordinates: 25°45′16″N 86°01′33″E / 25.75444°N 86.02583°E | |
| Country | India | 
| State | Bihar | 
| Region | Mithila | 
| District | Samastipur | 
| Lok Sabha constituencies | Samastipur | 
| Vidhan Sabha constituencies | Rosera | 
| Population  (2011) | |
|  • Total | 13 Lakh+ | 
| Time zone | UTC+5:30 (IST) | 
| PIN | 848210 | 
| Telephone code | 06275 | 
Rosera is a city (subdivision) on the bank of River Budhi Gandak. It is a municipality in Samastipur district in the Indian state of Bihar. Rosera block consists of 48 villages. Rosera is well connected by the rest of the country through railway or road network. Rosera is connected to Begusarai district via SH-55 and Darbhanga district via SH-88 and it's approx 120km from Capital Patna.