IMS BHU is a Central University. And admission to Central Universities is conducted by the DGHS on behalf of NMC. Once the results ave been declared and the merit list has been released, you need to register at: www.mcc.nic.in  and participate in All India Counselling. Now because you belong to General Category, you will need nothing less than 600-625. Now this is based on previous years data. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam.