The Central Board of Secondary Education (CBSE) is unlikely to conduct exams for the remaining papers of the Class X and XII boards that had to be halted because of the pandemic and lockdown, sources in the country’s largest school board said.

The CBSE, which had earlier said the remaining exams would be held in July but ran into opposition from parents who petitioned the Supreme Court citing the pandemic, plans to award marks in the pending papers on the basis of averages.

Board officials said the CBSE was “certain” not to conduct exams for the remaining Class X papers, and that a similar decision was likely on the Class XII papers too.

The CBSE had on Wednesday told the apex court that it would take a decision on both sets of exams very soon. The court will hear the case again on Tuesday.

Board officials told this newspaper that in case of Class X examinees, their scores in the papers for which exams cannot be held may be calculated as an average of two components.

One component will be the average of the marks the candidate has scored across the papers for which exams have been held, and the other will be the internal assessment score awarded by the school in that particular subject.

Consider a candidate who has scored an average 80 per cent in the papers she has written, and 12 out of 20 (60 per cent) as internal assessment for a subject in which board exams haven’t been held. Her score in that subject would therefore be the average of 80 and 60 per cent, that is, 70 per cent.

For Class XII students, it will be an average of three components, the additional component being the marks they have scored in that particular subject in their pre-board school exam.

Internal assessment is based on performance in class, projects, quizzes and oral tests. Internal assessment for all the papers had been done before the lockdown began on March 25.

Exams for 50 papers in Class X and 12 papers in Class XII could not be held.