I want to share my personal experience of that Cochin IIT for jee advance I have take drop after 12th they made a suffling take in that they separate all the students according to their brain level . That’s is truly unfair when all the student submitted same amount of fees then why saprated all of them. In higher batch they make them solve quality question and make a difference in students varies faculty according to high to low batch . And they are nit taking fees for study thet are doing marketing