See this is difficult to predict the ranks will differ year to year. Basically KEA uses PU and KCET socres in equal ratios but there are other factors that make a difference like the number of applicants, So a large number may mean that ranks wont be the same. also you have to consider the number of students who may have obtained the same marks and inter-se-merit rules are applied. So predicting is pretty dicey. However something like 150 to 180 should fetch you a good rank.