Hello,

Yes, why not? You can prepare for JEE.Before that you must check the eligibility criteria and know whether you are fulfilling the eligibility criteria or not.The eligibility criteria is that

• A candidate must have passed 10+2 with Mathematics, Physics, Chemistry/Biology or any other vocational course or it's equivalent from a recognised board or university.
• Candidates belonging to general category must have passed 10+2 with atleast 75% candidates belonging to SC/ST  must have passed with atleast 65%.
• There is no age limit.
• Candidates must have passed qualifying exam in the year 2019 or 2018.
• Candidates who will pass qualifying exam in 2020 are also eligible.

You can click the link below to see the information about JEE main 2020

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-eligibility-criteria/amp