hello,

BIT doesn't accept jee mains for admission of students for engineering streams. College organizes it own entrance exam for admission of students. if you want to join BITS then you have to appear that test.

using JEE main, you can apply for government college in your state or private institute. your percentile is low for NIT cutoff. still you can try as NIT considers rank upto 2lakh for non technical and core branches.

Thanks