Joint Entrance Examination(JEE) is an engineering entrance examination conducted for admission to various engineering collages in India.It is constituted by two different examinations- JEE Main and JEE Advanced. The exams are of the objectives pattern. JEE Advanced is regarded internationally as one of the most challenging undergraduate admission tests.
In 2012, the government-run Central Board of Secondary Education (CBSE) that earlier conducted the AIEEE,announced the JEE that replaced the AIEEE and IIT-JEE. The JEE-Main, which replaced AIEEE, is for admission to the National Institute of Technology(NITs), Indian Institute of Information Technology (IITs), and some other collages designed as "Centrally Funded Technical Institutes (CFTIs)". The JEE-Advanced, which replaces IIT-JEE, is for admission to the Indian Institutes of technology (IITs).Only the students selected in JEE-Mains are eligible for appearing in JEE Advanced. Selection in advanced paper gives chance to get admission in IIT collages.
There are some institutes like the Indian Institutes of Science Education and Research (IISERs), Rajiv Gandhi Institute of Petroleum Technology, and the Indian Institute of Science which use the score obtained in JEE Advanced as the basis for admission. These are not participating institutes of central IIT JEE Advanced counselling of which all IITs are members. Any student who takes admission to IITs cannot appear for the JEE-Advanced exam in the next year, but the same is not the case with IISc, IISER, RGIPT and other Institutes as these Institutes only use JEE Advanced score for admission.
JEE Main has two papers, Paper-1 and Paper-2. candidates may opt fot either or both of them. Both papers contain multiple choice questions. Paper-1 is for admisiion to B.E./B.Tech courses and is conducted in both online and offline modes. Paper-2 is for admission in B.Arch and 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 subjects(Physics, Chemistry, and 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 2016, the marks obtained in XII school board examination used to be accorded a 40% weightage in deciding the JEE Main all India ranks.
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.