Should I take the risk

Getting exact 75.00% in boards CBSE but but . Missing the cutoff of chemistry by 1 marks for BITSAT . so if I were to give for rechecking if by some reason they decrease the marks I am FUCKED . as I would've to give improvement but if I don't then bits is gone even for my drop year (if I decide to take it ) cus all 5 subjects ka nahi dunga Mai improvement . So decesion abhi hi Lena hai