I got 70% what is my top 20 percentile rank of 2018
Dear Rohit,
Every board will declare their cut off for top 20 percentile.
In order to be eligible for IITs/NITs/IIITs and GFTIs you should have 75% marks in your board exam or you should be in top 20 percentile in general category.
You have to fulfill any one criteria.
Good Luck!!