Will all the questions be from the syllabus prescribed (that is, from the NCERT books for Class X), or are students expected to read up all the subjects of Class VIII and Class IX also?

(R. Vishakan)

The question papers will be based on the syllabus prescribed by the Board as printed in the Secondary and Senior Secondary School Curriculum document of the CBSE. For Class X, the questions will be only from the Class X syllabus. However, you should know that learning is a continuous process and cannot be compartmentalised into years.