St Mary's Matric Higher Secondary School Arni
| School Name | St Mary's Matric Higher Secondary School Arni |
| Address | Paiyur, Arni, Tiruvannaamalai, Tamilnadu |
| Location | Paiyur |
| City | Tiruvannaamalai |
| District | Tiruvannamalai |
| State | Tamilnadu |
| Pincode | 632317 |
| Category | Higher Secondary School |
| Block | Arni |
St Mary's Matric Higher Secondary School Arni is located in Paiyur, Arni, Tiruvannaamalai, Tamilnadu and was established in year 1985. The 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 Private Unaided (Recognized). The school is situated in Arani assembly constituency. The school falls under Arani parliamentary constituency. This is primarily English medium school but Tamil is also spoken during classes.
| Pre Primary | 58 Kids |
| Class I to V | 197 Students |
| Class VI to VIII | 110 Students |
| Class IX to XII | 162 Students |
| Total Students | 527 Students |
| Total Teachers | 23 Teachers |
| Student-Teacher Ratio | 23:1 |
| Student-Classroom Ratio | 18:1 |
The institution has enrolled around six hundred students and has recruited total 23 teachers, thus making the student-teacher ratio of 23 students per teacher. All of the teachers are appointed on Regular basis. Twelve teachers are Male and remaining eleven are Female. In terms of Academic qualification eight teachers are Graduate and rest fifteen are Post Graduate. None of the teachers are trained in Computer. The student classroom ratio is 18:1, means on an average eighteen students sit in a classroom which is very good. There are 58 kids in pre primary, 197 students in class I to V, 110 students in class VI to VIII and 162 students in class IX to XII.
The school is in a rented building and it has pucca boundary walls. The school has total thirty clasrooms and four other rooms. The school has internet facility for students. The school has one laptop, eight desktops, six scanners, six digiboards, two webcams and one generator in its premises. There is reading corner, library and book bank for students. There are seven boys toilets, seven girls toilets and two cwsn toilets for students. The school has both hand wash facility and drinking water facility for people.