RV college of Engineering , MS Ramaiah Institute of Technology and BMS college of engineering are the top 3 colleges according to the rankings and if we see the previous year trends of these colleges then you have very good chances of getting admission in these colleges but the matter of the fact is that you will not get much of the choice for branch selection as for a rank of 4000, there are minimal changes for you to get CSE or some other branches and if you really wanna go to these colleges irrespective of the branch then you surely will make it to any one of them.