Well if you want a good branch like CS or ECE make sure you are in Top 150 ranks of CET if you are a general category student.
For COMED-K if you have HYDERABAD KARNATAKA quota even if you have around 1000 ranking you might get because most of those top rankers would have chose college through other critireas
So for CET make sure your marks is 160+ and pcm average of 98 at least to be on safer side