Hello,

As per the eligibility criteria for UCEED 2020,  candidates who appeared in the qualifying exam in 2018 or before are not eligible to apply for UCEED 2020.

Only those  who have either passed the class XII or any other relevant qualifying exam either in 2019 or 2020 are eligible to  appear in UCEED exam, candidates from any streams are eligible.

Sorry to inform you, but as you stated you've passed 12th in 2018, so you're not eligible.