Govt.Higher Secondary School Old Mohong
| School Name | Govt.Higher Secondary School Old Mohong |
| Address | Old Mohong, Lekang, Namsai, Arunachal Pradesh |
| Location | Old Mohong |
| City | Namsai |
| District | Namsai |
| State | Arunachal Pradesh |
| Pincode | 792105 |
| Category | Higher Secondary School |
| Block | Lekang |
Govt.Higher Secondary School Old Mohong is located in Old Mohong, Lekang, Namsai, Arunachal Pradesh and was established 48 years ago. This school is a Co-educational and is located in Rural area. This is a Higher Secondary school and is currently operational. It's affiliated with CBSE Board for class-X & class-XII exams. The school is managed by Department of Education. This school falls under 48-Lekang(St) Assemblyconstituency assembly constituency. The medium of instructions is English in the school.
| Class VI to VIII | 80 Students |
| Class IX to XII | 235 Students |
| Total Students | 315 Students |
| Total Teachers | 16 Teachers |
| Student-Teacher Ratio | 20:1 |
| Student-Classroom Ratio | 23:1 |
The school has enrolled around four hundred students being taught by around 16 teachers. The school has student-teacher ratio of 20 students per teacher. Nine teachers are appointed on Regular basis and rest seven are appointed on Contract basis. Thirteen teachers are Male and remaining three are Female. In terms of Academic qualification one teacher is Below Graduate, nine are Graduate and rest six are Post Graduate. Three teachers are trained in Computer. The student classroom ratio is 23:1, means on an average twenty three students sit in a classroom which is very good. There are 80 students in class VI to VIII and 235 students in class IX to XII.
The school is in a Govt. building and it has pucca boundary walls. The school has total fourteen clasrooms and five other rooms. There are one boys toilet and one girls toilet for students. The school has both hand wash facility and drinking water facility for people.