Hello shreyash,
Hope you are doing well.
First of all, congratulations on getting such good percentile marks in JEE Mains.
But, as you know, the cut-off for any NIT is very high, generally >95 percentile for ECE or CSE branch. So, its difficult to say unless you wait till 3rd round.
But to give you a head start, check the following link to know which college you can get based on your percentile -
JEE Main College Predictor – Know your College Admission Chances Based ...
Best of luck for your further journey!
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