Hello Adarsh ,

Which institute u can get depends on the choice of selection of branch. For ex if I talk about CSE and IT , it would be very difficult to get top 10 nits and top 5 IIITs .

But you can easily get branches like ECE , EEE or mech in reputed nits except nit trichy, Warangal, surathkal, Allahabad. Rest nits you can get till last round. Talking about IIITs leaving Hyderabad, Bangalore, Allahabad, Delhi 

You can go for Gwalior, Jabalpur. You can get IT there.

Visit careers360 college predictor site. It will tell you everything about which college u can get at your rank to the best.