Dear Akash,
Hope you are well
I am sorry to say that in 497002 you can not get into any nit and for IIT you have to give advanced which is given after qualifying mains for advanced there is the cutoff that had to be cleared. So do not lose hope better if you try again with a lot of effort or take admitted to a private college.
You can predict your college with the given link below:
JEE Main College Predictor – Know your College Admission Chances Based ...
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