The NIOS On-Demand Examination System (ODES) is a unique and student-friendly examination scheme introduced by the National Institute of Open Schooling (NIOS) for learners of Class 10th (Secondary) and Class 12th (Senior Secondary). Unlike the traditional board exams that are conducted twice a year in April and October, ODES allows students to appear for their exams whenever they feel... https://niosadmission.com/nios-on-demand-examination/