Board of Secondary Education, Class 10th (HSLC/AHM) Public Examination in the month of March to April to the Public Examinations of 2021 under Assam State Gov. SEBA is Published in the HSLC or 10th Class final Examination Date Sheet or Routine in every year from the Month of December or January at Official Website POST ONE. National Institute of Open Schooling is going to conduct the 11th or 12th Class annual final Examination in the month of March to April to the Public Examinations of 2021 Ministry of Human Resource Development.