IIT's seven branches in India enroll more than 4,000 new students every year. Thousands of middle school students in India can only take the Joint Examination (JEE) if they want to squeeze into this narrow door. The entrance exam is the most difficult of this kind of undergraduate entrance exam in the world, so getting into the Indian Institute of Technology is like crossing a wooden bridge. Every year, more than 300,000 high school students with excellent grades apply for JEE, but the admission rate is less than 2%, which is lower than Harvard University's 13%. There is a popular saying in India: first-class students enter IIT, and second-rate students go abroad to study in famous American schools. JEE, the Indian Institute of Technology school bus exam only takes physics, mathematics and chemistry, and it has to be taken twice. Brush off the last 40% for the first time, and select the candidates who can finally enter the school for the second time. It is often the creme de la creme who can get out of IIT. JEE can really screen out good students. Candidates who don't take the multiple-choice exam and only memorize will definitely fail. The ranking of JEE test scores is almost the same as that of students who graduated from school four years later. So it's hard to get in. Harvard has always ranked first in the world, and Indian Institute of Technology can't get into the basic 50, but this doesn't mean anything.