Hi Dodda, 

For now CBIT Hyderabad had not mentioned any rank opening or closing. But I hope you have done well in mains and have managed to score atleast more than 150. Because only 15% seats are reserved for the B- category and then your chances to qualify might be very slim. But keep checking the official website of CBIT that is www.cbit.ac.in for the latest updates. 

Good Luck