Govt. Senior Secondary School Katlaheri
| School Name | Govt. Senior Secondary School Katlaheri |
| Address | Katlaheri, Katlehri, Nissing, Karnal, Haryana |
| Location | Katlaheri |
| City | Karnal |
| District | Karnal |
| State | Haryana |
| Pincode | 132036 |
| Category | Higher Secondary School |
| Block | Nissing |
Govt. Senior Secondary School Katlaheri is located in Katlaheri, Katlehri, Nissing, Karnal, Haryana. Established 66 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 State Board for class-X & class-XII exams. The school is managed by Department of Education. It is located in 23-Assandh assembly constituency. The school is located in Karnal parliamentary constituency. The medium of instructions is Hindi in the school.
| Class VI to VIII | 102 Students |
| Class IX to XII | 192 Students |
| Total Students | 294 Students |
| Total Teachers | 14 Teachers |
| Student-Teacher Ratio | 21:1 |
| Student-Classroom Ratio | 42:1 |
The school has around three hundred students studying and has 14 teachers to teach them, which makes the student-teacher ratio of 21 students per teacher. Eleven teachers are appointed on Regular basis and rest three are appointed on Contract basis. Nine teachers are Male and remaining five are Female. In terms of Academic qualification one teacher is Below Graduate, two are Graduate and rest eleven are Post Graduate. None of the teachers are trained in Computer. The student classroom ratio is 42:1, means on an average forty two students sit in a classroom which is good. There are 102 students in class VI to VIII and 192 students in class IX to XII.
The school is in a Govt. building and it has pucca boundary walls. The school has total seven clasrooms and three other rooms. The school has both internet facility and DTH facility for students. The school has six desktops, one printer, one LED and one generator in its premises. There is library for students. There are one boys toilet, four girls toilets and one cwsn toilet for students. The school has both hand wash facility and drinking water facility for people.