if a student fails in +2 exam 2019 and passed in 2020 if he eligible for keam 2020
Yes dear ,even if you fail your class 10+2 board examination in 2019 but pass it in 2020 then yes you will be eligible for KEAM 2020 Examination .
But yes as per eligibility criteria to be eligible you need to pass it with at least 45% marks in Physics, Chemistry and Mathematics together. Physics and Mathematics are compulsory subjects while Chemistry is the optional subject and if you don't have Chemistry then in place of chemistry,marks in computer Science or biotechnology or Biology can be considered .
For detailed information go through