Marks scored by students are changed keeping in mind the difficulty level of different sets of papers, marking standards of different examiners, and the difficulty faced by the student in answering a question in the specified time. For example, if there are three different sets of papers, and set A has a difficulty level of 90%, B has 80%, and C has 70%, the board will use the moderation policy to decide how much each set has to achieve to be on a par with them.

Grace marks is not same as to moderation policy.grace marks are awarded to students to improve the pass percentage.