In order to get into Bits-Dubai, all you need to have is good percentage of marks in your 12 standard exams. The minimum marks needed is just 60 % overall aggregate. And if you are getting like 80 % or above then surely you are in. Every year, i think the seats are being increased at BITS-dubai for all branches - so obviously the cut off marks at Bits-dubai will also be decreasing - that way it is now much more easier than those early time when the cut-off was more than 85 %.
I think the most sought after branch is the Electronics branch. And the next one in demand is Computer Science branch. So, you should target for a little bit more if you are interested in computer science or electronics engineering disciplines. Well, another thing to note is that - at Bits-Dubai, two admission lists are prepared. One for GCC candidates and the other for Non-GCC candidates. First the requirements of GCC candidates are fulfilled and then the rest of the seats are filled out by Non Gcc candidates. No worries though - as far as i know - i think the seats are filled on 1:1 ratio - ie 50 % by GCC candidates and the rest of the 50 % by Non GCC candidates. Still, if you are a GCC candidate then you are getting a little bit more priority than the others.