Hi aspirant

First of all you will have to appear in JEE mains .There is no other way you can get these colleges.

To qualify JEE you need to score more than 90%ile and in order to get college you need 95%ile.So basically if you score more than 130 marks definately you will get any of these college.

Visit the link below to check the cut off of these NITs:https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits#

Hope this was helpful.