| | Established | 1952 |
| | Level | Higher Secondary |
| | Type | Co-Educational |
| | Board | CBSE |
| | Medium of instruction | English |
| | No. of students | 1439 |
| | No. of Teachers | 111 |
G.M.S.S.S 23 A is located in Ward4, Chandigarh. It is a CBSE school, with a team of 59 dedicated and professional faculties, which are here to ensure that the children get the most from their education.
G.M.S.S.S 23 A was started in the year 1952. The primary medium of instruction is English and the student teacher ratio is 24:1. The school takes pride of its excellent teaching methodology.
The school provides education to students from class 1 to 12. 1439 is approximately the current student strength of this school. The library in this school has 11460 books.
The school has given exceptional results in the academic sphere and its students have excelled in extra co-curricular activities too. 100% from this school qualified the examination and out of those, 44% scored first grade with flying colors.
| School Code | 4010400101 |
| Status of Building | Government |
| Total Classrooms | 8 |
| Student Teacher Distrubution | Teachers 111 | Student 1439 | |
| Boys to Girls Ratio | Boys 956 | Girls 421 | |
| Students Distribution | Primary 293 | Secondary 315 | Hr.Secondary 831 |
