i got 72% in 12th but i didnt get good in jee so if in 2019 i am in top20 percentile and if i take drop and clear jee mains will i getNIT
I would like to inform you that to get admission into IITs/ NITs and some other colleges, you have to score either 75% or be in the top 20 percentile in class 12th board exams in the year you have given the exams. Since, this year, you are in the top 20 percentile, then you can attempt to take a drop and prepare well as you won't have to worry about your board exams.
Good luck!

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