JEE Main has two papers, Paper-1 and Paper-2. Candidates may opt for either or both of them. Both papers contain multiple choice questions. Paper 1 is for admission to B.E./B.Tech courses and is conducted in both online and offline modes. Paper-2 is for admission in B.Arch / B.Planning courses and is conducted offline only.
JEE Main, unlike JEE Advanced, has a fixed exam structure and is not subject to change every year. Paper-1 is of three hours duration and consists of thirty multiple-choice (single-correct) questions in each of the three subjects (physics, chemistry, maths). There is negative marking for incorrect answers. 4 marks are awarded for correct answers and 1 mark is deducted for incorrect answers.
From 2013 to 2017, the marks obtained in the class XII school board examination used to be accorded a 40% weightage in deciding the JEE Main all India ranks.
Now candidate should have secured at least 75% marks in the 12Th class examination, or be in the top 20 percentile in the 12 class examination conducted by the respective Boards. For SC/ST candidates the qualifying marks would be 65% in the 12th class examination.
From 2017, CBSE made Aadhar card mandatory for students applying for JEE. Students not having the card were asked to register for it before applying for JEE Main.