The majority of public schools are affiliated with the State Council of Educational Research and Training, Kerala (SCERT Kerala). There are 15,892 schools under the SCERT, of which 5,986 are government schools, 8,183 are aided schools, and the rest are either un-aided or technical schools.[16] Other educational boards are the Indian Certificate of Secondary Education (ICSE), the Central Board for Secondary Education (CBSE), and the National Institute of Open Schooling (NIOS).