CBSE previous year question papers class 12, plays an important role. So, students are advised to solve the CBSE Class 12 Previous Year Question Papers. They can start practising the questions from CBSE Class 12th Board Previous Year Question Papers after once they have finished the syllabus. The best time to practice CBSE class 12 question papers from the last 5 years, is one month before the board exam. It will help students in understanding the exam pattern and type of questions asked in the exam.