Hello Sabuja,

The eligibility criteria for answering  JEE mains stated by NTA says that the candidate must have answered and passed his/her class 12th in the year 2018-2019 from a recognized board. Since, you have qualified your class 12th in the year, you are absolutely eligible to answer JEE mains that will be conducted in the month of April. Also, see that you have had Physics, Chemistry and Mathematics as the main subjects in your class 12th.

Good luck!