Hello Aspirant! Please clear if you're from general category or belong to some other category. And also, please tell us your CRL rank for us to guide you for your question. If you're general, then No, you can't get admission in BIT Sindri. You have to have above 85 percentile to be on the safe side. But you may try in the spot round counselling in which you can get a lower branch like Mining or Production. And as per the cutoff of this year which hasn't released yet, you may or may not get BIT if you're General. You can use this link for predicting your college:
https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna&utm_medium=jee_cp