DELHI STATE OPEN SCHOOL IS ESTABLISED IN 1978 FOR PROMOTE THE OPEN SCHOOLING IN ALL OVER INDIA.

CHECK COBSE MEMBERSHIP: https://www.cobse.org.in/recognized-educational-boards/

NIOS AND STATE OPEN SCHOOL: https://www.nios.ac.in/contact-us/state-open-school.aspx

FOR 10th and 12th