Hey supravat
80.50240001 is very less percentile.
It means nearly 19.5 percent students score more than you in your slot.
And when you calculate the approx  rank after April exam.( When we get to know the exact number of students appear in exam ).
It comes out to be more than 2 lakh.
But in NIT seats are limited
So you have to secure rank under 10-15 thousand to get admission in core branch( rank may vary depending upon your caste and state.).
So prepare well for next attempt.
Good luck

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