The National Institute of Open Schooling (NIOS), which has emerged as the largest Open Schooling system in the world, has a pivotal role to play in the promotion and development of Open Schooling in the country. However, it is not possible for NIOS alone to cater to the needs of all regions of our multi lingual and multicultural country (India). The Open Schooling system is required to be promoted and strengthened in all the States of the country to "reach the unreached". NIOS has, therefore, been pursuing the State Education Departments to set up State Open Schools (SOSs).The NIOS has been providing professional and technical support services to States to set up State Open Schools to cater to the educational requirements of the clientele/students.