The first education board to be set up in India was the Uttar Pradesh Board of High School and Intermediate Education in 1921, which was under jurisdiction of Rajputana, Central India and Gwalior. In 1929 the government of India set up a joint Board named "Board of High School and Intermediate Education, Rajputana". This included Ajmer, Merwara, Central India and Gwalior.
Later it was confined to Ajmer, Bhopal and Vindhya Pradesh. In 1952, it became the “Central Board of Secondary Education”.
CBSE affiliates all Kendriya Vidyalayas, all Jawahar Navodaya Vidyalayas, private schools, and most of the schools approved by central government of India.
(The Source of the above information is HTTP://EN.WIKIPEDIA.ORG/WIKI/CENTRAL_BOARD_OF_SECONDARY_EDUCATION)