Dear aspirant hope you are doing well..

Yes 75% attendance are compulsory for the board exam.

Rule 13 of the Examination Bye-Laws of the Board specifies the attendance requirements for a student to be eligible to appear for the Class X and XII examinations of the CBSE. Rule 14 of the Examination Bye-laws state the percentage of attendance upto which it can be considered for condonation and the grounds for its consideration.

Following has been observed:-

• Students, parents, and schools are not following Rule 13 and Rule 14 of the examination Bye-Laws strictly;
• They are not submitting desired documents and certificates of the Competent Authority while seeking exemptions in attendance;
• Schedule for submission of documents and certificates is not being adhered to;
• Schools are not sending all the cases of shortage of attendance to the CBSE;
• Students are not attending the school regularly; and
• As per the analysis of the result of 2019 of the students whose attendance had been condoned have performed poorly in the examinations.

hope it's helpful

thank you