[1] RIMC (established in 1922), RIMs and various Sainik Schools contribute 25% to 30% to various training academies of the armed forces.

The school is located amidst pine and deodar forests in the heart of the 110 km2 Chail Sanctuary at an altitude of 2,144 meters.

A cricket ground, said to be the world's highest[2] is located in Chail and is used as a training and playground for cadets.

Hence these schools were named "King George Royal Indian Military Colleges" (KGRIMC).

Along with its sister KGRIMS institute now located in Jhelum, Pakistan, Chail Military School was named as King George Royal Indian Military School after King George V. After World War I, in February 1922 the foundation stone of the school was laid at Jalandhar Cantonment and regular classes were started in Punjab in September 1925 at Jalandhar Cantonment and the second campus at KGRIMS Jhelum (now in Pakistan).

The eligibility norms were relaxed to facilitate enrollment of near relatives of Army personnel and admissions were thrown open to all branches of the armed forces.

At that time, Jalandhar and Jhelum military colleges were affiliated with the Panjab University for matriculation and intermediate examinations.

On the recommendations of a committee headed by educationist Dr. Hridaya Nath Kunzru, KGS was reorganized as residential public schools, and admissions were thrown open to the sons of Service Officers as well as Civilians.

The motto of the schools was changed to "Sheelam Param Bhushanam" which translates to "Character is the Greatest Virtue".

All RMS are under the direct control of the Army's Directorate General of Military Training (DGMT) at IHQ of Ministry of Defence (MoD), and the instructions pertaining to finance, training, admission and recruitment are received directly from Army Head Quarters (AHQ).

[7] The Central Governing Council (CGC), headed by the Defence Secretary, is the apex body for the school.

Cadets of RMS institutions have risen to the rank of Generals, Air marshals, and Admirals, Secretaries to the government of India and to top positions in the police and Paramilitary forces.

Many have established industries and reached international level recognition in their fields and also hold high positions in companies.

Daily three hours of compulsory prep is included in a routine for students to concentrate on their studies.

Cadets participate in debates, declamations, quizzes, extempore, dance, theatre, and poetry recitation in English and Hindi.

President of the Georgian Association (North) is Sh Vipin Pubby who was elected on 13 April 2018 at Chandigarh.