Harsha, while calculating your NEET eligibility, only your 12th marks are considered. The same goes even with KCET. To be eligible for NEET, you should have completed your 12th in all subjects and should have secured a minimum aggregate of 50% in Physics, Chemistry and Biology. It is 50% for General Category, 45% for PWD and 40% for OBC,SC,ST. The same 12th pass rule applies to KCET as well. Your 11th marks are not considered. Having said that you should pass both your 11th and 12th before you take admission in your next course.