To be frank if you have studied well during those 1st 3 years then it will be quite easy to bag a modest package of atleast 6–7 lpa in final year irrespective of your branch.
Coming to placement statistics , Computer science is the branch will would fetch you the highest package these days.Then follows electronics and communication (EC) and Mechanical engineering. Chemical and mining engineering has sporadic high package placements like BPCL,HPCl,CIL,HZL etc. For rest branches analytics companies are available to get a decent package.