Generally there will be 3 rounds of admission for Holkars and the first round cut off is usually at 85%. Going by previous years data, B.Sc Computer Science had a cut off of 85%, Electronics had 80%, Statistics had 81.2% Microbiology had 80%. Now this is for General Category. But cut offs depend on various factors such as no.of Students applied, top score, no.of seats available in each stream, etc. So you need to have a minimum aggregate of 85-95% in your 12th.