Hello Kunal, 

As per the previous year cutoff trends, here are the cutoff ranks for SC category candidate over the years - 

• In 2018 - cutoff rank - 185, cutoff score - 51
• In 2017 - cutoff rank - 48, score - 233
• In 2016 - cutoff rank - 47, score - 162

It seems as if you have a very slim to no chance of getting admission in BHU considering the trends from previous years. Although, don't lose hope as cutoffs don't remain the same every year and wait patiently for the rounds. Meanwhile, take care to keep a lookout for other colleges and institutes as well to make sure you get the institute of your choice. 

All the Best!