The National Institute of Open Schooling (NIOS) formerly known as National Open School (NOS) was established in November 1989 as an autonomous organization in pursuance of the National Policy on Education 1986 by the Ministry of Human Resource Development (MHRD), Government of India. For more details please visit:
https://www.bosse.ac.in/national-institute-of-open-schooling-vs-board-of-open-schooling-skill-education/