You didn't mention here your caste category, Assuming you as a general category As per 2017 cutoff IIT Bhilai for Mechanical Engineering the opening rank was around 6060 & closing rank was around 8770. If you want to know about other categories then you can refer the below given link.

https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iit-bhilai

Good Luck!