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Sainik Schools are a system of schools in India established and managed by the Sainik Schools Society under Ministry of Defence (MoD). They were conceived in 1961 by V. K. Krishna Menon, the then Defence Minister of India, to rectify the regional and class imbalance amongst the Officer cadre of the Indian Military, and to prepare students mentally and physically for entry into the National Defence Academy (NDA) and Indian Naval Academy (INA). Sainik Schools, along with 1 RIMC and 5 RMS, contribute 25% to 30% officer cadets to NDA and INA. As of 2021, there were 33 Sainik Schools, and MoD will establish 100 more boarding Sainik Schools in public–private partnership (PPP) mode.