Hey Vijayalakhsmi,
For IITs you have to secured under 9000 rank
For NITs you have to secured under 30,000 rank
There are too many colleges other than IITs and NITs. For state govrnment colleges you have to appear in state level exam and also you can take admission in private colleges directly.
Hope this helps you!
Candidates can check B.Tech Cut off for Top IITs & NITs here.
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