The examination consists of two papers: Paper 1 and Paper 2. Paper 1 has three sections: Mathematics, Physics and Chemistry with equal weight for each subject. Each section consists of multiple choice objective-type questions each of which has four choices. Out of the four choices for a given question, only one choice is correct. Paper 1 has a negative-marking scheme wherein an incorrect answer is negatively marked with one fourth of the maximum marks allotted to the question. Paper 2 has three sections: Mathematics, Drawing, and Aptitude. Mathematics, and Drawing sections have multiple choice objective-type questions and the Aptitude section has drawing-based questions. The duration of each paper is three hours. Candidates are not allowed to carry any textual material, calculators, logarithmic tables or electronic devices into the examination hall. The number of questions and their maximum marks have been variable through the years. The questions are based on a syllabus that is common to syllabi of all the state boards in India and the Central Board of Secondary Education. Candidates can opt for question papers either in English or in Hindi language. For admission to B.Tech or B.E. courses in the participating institutes the candidate is required to take the Paper 1; for admission to B.Arch or B. Planning courses the candidate is required to take Paper 2. Students can opt to take any one or both the papers.[2] The examination was conducted in offline pen and paper mode till 2010. In 2011, as per the orders of the Ministry of Human Resource Development, CBSE conducted Paper 1 in Computer-Based-Test mode for the first one lakh candidates who opted for the same, while the remaining students took the examination in the conventional pen and paper mode.[3] The number of attempts which a candidate can avail at the examination is limited to three in consecutive years.