The Joint Entrance Examination (Advanced) (JEE Advanced), formerly the Indian Institutes of Technology-Joint Entrance Examination (IIT-JEE) is an annual engineering college entrance examination in India. It is conducted by one of the seven zonal IITs (IIT Khargpur, IIT Delhi, IIT Kanpur, IIT Bombay, IIT Madras, IIT Guwhati and IIT Roorkee) under guidance of the Joint Admission Board(JAB). It is used as the sole admission test by the 23 Indian Institutes of Technology (IITs). Other universities like the Rajiv Gandhi Institute of Petroleum Technology, Indian Institutes of Science Education and Research (IISERs), and the premier Indian Institute of Science (IISc) also use the score obtained in JEE Advanced as the basis for admission. 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. The examination is organised each year by one of the various IITs, on a round robin rotation pattern. It has a very low admission rate (about 9,369 in 479,651 in 2012;which is around 1.95%)[2], and was thus recognised as one of the toughest examinations in the world. The current admission rate in 2017 is around 0.92% in IITs (about 11,000 out of 1,200,000 who applied for JEE Main) .
In 2013 the exam, originally called the IIT-JEE, was renamed as JEE (Advanced), along with the AIEEE being renamed JEE(Main). From 2017, IITs started conducting JEE internationally to give admission to international students.
The first IIT, Indian Institute of Technology Kharagpur|IIT Kharagpur, started in 1951. In the initial few years (1951-1954) students were admitted on the basis of their academic results followed by an Interview in several Centers across the country. From 1955-1959 admission was via an all India examination held only for IIT Kharagpur (other IITs had not started by then). Branches were allotted through Interviews/counseling held at Kharagpur.
The common IIT-JEE was conducted for the first time in 1960, when it had four subjects including an English language paper. The examination since evolved considerably from its initial pattern. The IIT-JEE was initially called the Common Entrance Exam (CEE); its creation coincided with that of the 1961 IIT Act.