| | Established | 1962 |
| | Level | Upper Primary |
| | Type | Co-Educational |
| | Board | Others |
| | Medium of instruction | Hindi |
| | No. of students | 827 |
| | No. of Teachers | 9 |
Harlakhi in Madhubani has a school named M.S. Kalna. The children get the most out of their education as they are taught by a team of 7 professional and dedicated faculties in this Other Board school.
In 1962, M.S. Kalna was launched. With the student teacher ratio being 118:1 the primary medium of instruction is Hindi. Every member of the school is committed to provide the best learning environment.
This school runs classes from 1 to 8 to provide education to students. The current student strength of the school is approximately 827. The library in this school has 502 books.
The school has given exceptional results in the academic sphere and its students have excelled in extra co-curricular activities too. This school has 100% of students qualifying the examination and out of these 100% scored first grade.
| School Code | 10050701602 |
| Status of Building | Government |
| Total Classrooms | 9 |
| Student Teacher Distrubution | Teachers 9 | Student 827 | |
| Boys to Girls Ratio | Boys 392 | Girls 435 | |
| Students Distribution | Primary 316 | Secondary 511 | Hr.Secondary 0 |
