| | Established | 1939 |
| | Level | Higher Secondary |
| | Type | Girls |
| | Board | State Board |
| | Medium of instruction | Tamil |
| | No. of students | 3013 |
| | No. of Teachers | 98 |
Kattankolathur in Kancheepuram has a school named St.Mariyannai(Aided)Hss. There are 49 dedicated and professional faculty members who impart quality education to children in this State Board school.
St.Mariyannai(Aided)Hss was launched in 1939. With the student teacher ratio being 61:1 the primary medium of instruction is Tamil and English as secondary medium. Every member of the school is committed to provide the best learning environment.
Students from 6 to 12 are taught in this school. The current student strength of the school is approximately 3013. This school's library has 3000 books.
The school has given exceptional results in the academic sphere and its students have excelled in extra co-curricular activities too. The perentage of students passing the exam is 100% with 96% scoring first grade.
| School Code | 33030705205 |
| Status of Building | Private |
| Total Classrooms | 21 |
| Student Teacher Distrubution | Teachers 98 | Student 3013 | |
| Boys to Girls Ratio | Boys 0 | Girls 3013 | |
| Students Distribution | Primary 0 | Secondary 2025 | Hr.Secondary 988 |
