my name is Santhosh.I wrote kcet exam two years ago.can I write kcet exam in this year?

Hi Santosh, hope you are doing well. Yes you are eligible for KCET examination.Because in the eligibility criteria of KCET examination age factor is not mentioned.
But you must be a citizen of India, have passed class 12th with Physics and math is compulsory subject and chemistry, biology  AS  optional subject along with English.(LANGUAGE PAPER)
For general category student the cutoff percentage for  KCET examination is 45%. Reserved Category student the cutoff is 40%. So you can easily give the examination. Prepare well.

Hope this will help you good luck