The school is an institution recognised by Council of Higher Secondary Education, Manipur.

[1] The school was established by Sir James Johnstone, the political agent of Manipur from 1877 to 1886 during the British colonial rule in India.

So, every year on 9 February, Sir Johnstone's birthday is celebrated with a simple function by the teachers and students.

Prominent world scholars such as Fritz Stall visited this school as part of their research work and collect valuable information from the archives of the institution.

[2] The school has produced a large number of academics, university professors, scientists, civil servants, politicians, and other renowned persons in Manipur as well as in India and different parts of the world.