Dear Aspirant,

If you clear JEE Main with good score and good rank then you will be able to get branch in NIT and also there are chances of yours to get seat in IIIT even after not clearing your JEE Advance. There are many top engineering colleges in India who gives you admission on the basis of your JEE score you can also try your luck there. Other than this you can give your state entrance exam to get admission in government colleges of your state.

Hope this information helps you.

Thank you