Joint Entrance Examination (JEE) is an all India common engineering entrance examination of objective pattern which is conducted for admission in various engineering colleges and courses all over the country.

It is regarded internationally as one of the most challenging engineering admission tests.

JEE consists of two parts, JEE Main and JEE Advanced.

JEE-Main exam is for admission to National Institutes of Technology (NITs), Indian Institutes of Information Technology (IIITs), Centrally Funded Technical Institutes (CFTIs) as well as for admission to the dual degree programme of IIEST Shibpur.

Only the students selected in JEE Mains are eligible for appearing in JEE Advanced.

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.

Source: Wikipedia