Hello there

Both IIT and NIT are government engineering institutes where IIT stands for Indian Institute of Technology and NIT stand for National Institute of Technology .

NITs take admission through JEE main rank and IITs take admission through JEE advanced rank.

These are the government colleges and also here you will be finding highly qualified professors and researchers so this college is not made up for profit but to give quality education to the students  as compared to various private colleges which are for the profit purposes. Now into these colleges you will be finding various students who are very skilled and intelligent so here you will be finding more competition as compared to any other engineering colleges so because of that you can enhance your personality, your skills and can think differently and deeply into various prospects of your academics. That's why these are the reasons why students prefer these colleges as compared to the private ones and also these colleges  are very much less costly in comparison to other private colleges so that students of all financial categories can afford it.

I hope it helps you!

Good luck!