New Delhi [India], September 23 (ANI/SRV): Renowned publishers in the education industry has announced the launch of sample papers of the official CBSE Board 2022-23 for class 10th and 12th. These CBSE Sample Papers 2022-23 for Classes 9, 10, 11 and 12 contain board likely questions and are based on the "CBSE Sample Papers". Oswaal Books has launched additional CBSE Sample Papers 2022-23 for Classes 9, 10, 11 and 12 for Extensive Practice. Oswaal CBSE Books 2022-23 For Classes 9, 10, 11 and 12 contain the latest typologies of Questions (level of competencies for questions) defined by Board. CBSE has made a few more changes in the marking scheme including marks weightage and alternation in weightage which will be given to various questions differently. Apart from this, CBSE has also reduced the 30 per cent syllabus for the students of classes 9th to 12 for the CBSE Board Exams 2023 session. The Book contains mind-maps, mnemonics, quick revision notes, video-based conceptual le