Yes, a student studying 12th standard can appear for KCET 2020 without doubt. But you should neet te eligibility criteria like you should have minimum age to appear for the exam. You can write KCET 2020 if you are 2020 pass-out batch of 12th standard.
For more details go through below link.
Karnataka common entrance test, is conducted by Karnataka Examinations Authority for admission of candidates to various engineering and medical programs.
This exam will be conducted tentatively on the 4th week of April 2020.
Now, coming to eligibility criteria of KCET, yes final year students too are eligible to apply for this.
You can check out the following link for more information related KCET 2020-