Csi. St. Thomas Higher Secondary School, St. Thomas Mount
| School Name | Csi. St. Thomas Higher Secondary School, St. Thomas Mount |
| Address | St.Thomas Mount, St.Thomas Mount(Urban), Chengalpattu, Tamilnadu |
| Location | St.Thomas Mount |
| City | Chengalpattu |
| District | Chengalpattu |
| State | Tamilnadu |
| Pincode | 600001 |
| Category | Higher Secondary School |
| Block | St.Thomas Mount(Urban) |
Csi. St. Thomas Higher Secondary School, St. Thomas Mount is located in St.Thomas Mount, St.Thomas Mount(Urban), Chengalpattu, Tamilnadu and was established years ago. The school is a Co-educational and is located in Urban 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 Government Aided. It comes under Alandur assembly constituency. The first mode of communication is Tamil in the school but English is also spoken during classes.
| Class VI to VIII | 243 Students |
| Class IX to XII | 731 Students |
| Total Students | 974 Students |
| Total Teachers | 36 Teachers |
| Student-Teacher Ratio | 27:1 |
| Student-Classroom Ratio | 30:1 |
The school teaches around one thousand students and has 36 teachers to teach them, which makes the student-teacher ratio of 27 students per teacher. All of the teachers are appointed on Regular basis. Twelve teachers are Male and remaining 24 are Female. In terms of Academic qualification one teacher is Below Graduate, five are Graduate and rest thirty are Post Graduate. None of the teachers are trained in Computer. The student classroom ratio is 30:1, means on an average thirty students sit in a classroom which is very good. There are 243 students in class VI to VIII and 731 students in class IX to XII.
The school is in a Govt. building and it has pucca boundary walls. The school has total thirty two clasrooms and three other rooms. The school has internet facility for students. The school has one laptop, five desktops, one LED, one webcam and one generator in its premises. There is reading corner, library and book bank for students. There are twenty boys toilets and twenty girls toilets for students. The school has both hand wash facility and drinking water facility for people.