Hello

It would be difficult to tell you exactly about the marks required for admission as the cutoff varies depending on various factors such as the difficulty level of the exam, number of candidates appearing in the exam, etc.

You can go through the link below and check the JCECE Cutoff rank 2017 for admission at BIT Sindri for reference

https://bitsindri.ac.in/docs/JCECE_cutoff_2017.pdf

Good Luck!