Koilajan D.A.V High School
| School Name | Koilajan D.A.V High School |
| Address | Koilajan, Borjan, Bokajan, Diphu, Assam |
| Location | Koilajan |
| City | Diphu |
| District | Karbi Anglong |
| State | Assam |
| Pincode | 782480 |
| Category | Secondary School |
| Block | Bokajan |
Koilajan D.A.V High School is located in Koilajan, Borjan, Bokajan, Diphu, Assam and was established 27 years ago. This school is a Co-educational and is located in Rural area. This is a Secondary school and is currently operational. It's affiliated with State Board for class-X exams. The school is managed by Government Aided. The school is situated in 017-Bokajan assembly constituency. The first mode of communication is English in the school.
| Class IX to XII | 50 Students |
| Total Students | 50 Students |
| Total Teachers | 8 Teachers |
| Student-Teacher Ratio | 6:1 |
| Student-Classroom Ratio | 25:1 |
This institution has strength of around one hundred students and has recruited total 8 teachers. The school has student-teacher ratio of 6 students per teacher. All of the teachers are appointed on Regular basis. Five teachers are Male and remaining three are Female. In terms of Academic qualification one teacher is Below Graduate and rest seven are Graduate. None of the teachers are trained in Computer. The student classroom ratio is 25:1, means on an average twenty five students sit in a classroom which is very good. There are 50 students in class IX to XII.
The school is in a Govt. building and it has other boundary walls. The school has total two clasrooms and two other rooms. There is book bank for students. There are one boys toilet and one girls toilet for students. The school has both hand wash facility and drinking water facility for people.