Hi

I am guessing that you are asking about top 20 percentile because you want to be eligible for NITs, IITs etc.

Actually , top 20 percentile list is released by josaa every year for different boards but in 2020 due to covid the minimum percentage requirement of 75% for general category or top 20 percentile in board examination was lifted off.

Similarly,

For 2021 ,there's no top 20 percentile criteria or 75 % in board or any other percentage barrier to be eligible for NITs, IIITs gftis, IITs/ jee advanced etc, you should have just at least passed your the board examination.

Thus, for 2021 there will be no top 20 percentile list as josaa will not release it.

But yes,

If you want to know about marks for t op 20 percentile for Bihar board for previous years, then is given below

You can check the same at

https://engineering.careers360.com/articles/top-20-percentile-of-class-12-boards-for-nits-iiits-and-cftis

Thank you