Primary School Koshihan
| School Name | Primary School Koshihan |
| Address | Koshihan, Kosihan, Gopalpur, Koilwar, Arrah, Bihar |
| Location | Koshihan |
| City | Arrah |
| District | Bhojpur |
| State | Bihar |
| Pincode | 802161 |
| Category | Primary School |
| Block | Koilwar |
Primary School Koshihan is located in Koshihan, Kosihan, Gopalpur, Koilwar, Arrah, Bihar and was established in year 1902. The school is a Co-educational and is located in Rural area. This is a Primary school and is currently operational. The school is managed by Department of Education. It is located in Sandesh assembly constituency. This is primarily Hindi medium school.
| Class I to V | 183 Students |
| Total Students | 183 Students |
| Total Teachers | 6 Teachers |
| Student-Teacher Ratio | 31:1 |
| Student-Classroom Ratio | 46:1 |
This institution has enrolled around two hundred students being taught by around 6 teachers. The student-teacher ratio is 31 students per teacher. All of the teachers are appointed on Regular basis. Three teachers are Male and remaining three are Female. In terms of Academic qualification five teachers are Below Graduate and rest one is Post Graduate. None of the teachers are trained in Computer. The student classroom ratio is 46:1, means on an average forty six students sit in a classroom which is good. There are 183 students in class I to V.
The school is in a Govt. building and it has no boundary walls. The school has total four clasrooms. There is both library and book bank for students. There are two boys toilets, one girls toilet and two cwsn toilets for students. The school has both hand wash facility and drinking water facility for people.