Hello Gaurav,

Since you failed this year and cannot/are not giving the supplement exams this year. But you are reappearing next year which will be held in march 2020, there are changes in the pattern of GSEB, you wont be able to give your exams through the old GSEB pattern of 50% theory and 50% MCQ, but will have to give the new CBSE pattern for board exams.

Hope this helps.