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/ MHRD RECOGNIZATION: NIOS AND STATE OPEN SCHOOL : https://www.nios.ac.in/contact-us/state-open-school.aspx FOR ANY TYPE QUERY MAIL TO DSOS : dsos-co.net.contact@gmail.com DATE SHEET 10th and 12th DATE SHEET 10th 2024 DECLARED CLICK