IIT JEE (Joint Entrance Examination) is a national-level engineering entrance exam in India for admission to prestigious institutes like the Indian Institutes of Technology (IITs), NITs, and other top engineering colleges. It is held in two stages—JEE Main and JEE Advanced. JEE Main is the first exam, and only the top performers qualify to appear for JEE Advanced. The exam tests students in Physics, Chemistry, and Mathematics, focusing on problem-solving and conceptual understanding. It is considered one of the most competitive exams in the world.