Examinations play an important role in the Indian system of education. They are so important that they direct the entire teaching-learning process in schools. Examination use mainly one tool to evaluate the achievement of students and that is the ‘question paper ’. So if public examinations have to stay till a viable mechanism of evaluation comes into effect, question papers used by the Central Board of Secondary Education in their public examinations need to be continuously examined and improved, especially for the purpose of improving the quality of education at the school stage. The objective of the study is to find out whether the questions papers are valid and reliable and what are their strengths and weaknesses.