Hey kiran

You cannot get admission in bits/vit just ob the basis of your board marks.

You should have written the entrance exams for bits or vit.Bitsat or viteee

There is no scope for getting admission for btech just based on board exams,

i suggest that you apply for some other college that is purely based on board scores.Many state universities do just bother about your marks,You have excellent scores so all the best!