Hi

Those who have passed 3 year diploma in engineering  are eligible for jee main. Final year appearing students are also eligible.

This is because,

3 year diploma in Engineering which is approved  by either AICTE or a State Board of Technical Education is equivalent  to 10 + 2 in order to be eligible for both JEE main and JEE advanced examination

You can check the same in the list of equivalent examinations on the page number 11th of Information Bulletin released by NTA ,the link to download it is provided below:-

https://jeemain.nta.nic.in/webinfo2021/File/GetFile?FileId=1&LangId=P

But you are still in 2nd year so you are not eligible.

You will become eligible for JEE main examination  in the year of appearing for your final i. e your third year diploma examination

For your reference,

Jee main eligibility criteria is given below-

---------------------------) Qualification required :- to be eligible  for JEE mains you need 10+2/equivalent qualification from a recognised board.

-------------------------) Passing year :- one is eligible for JEE main examination for consecutive three years starting from the year of appearing for 12th /equivalent examination i. e to be eligible  for JEE mains 2022 you should be either appearing for 12th board exam or equivalent  in 2022 or should have passed it in 2021 or 2020

-------------------------) There is no age limit to be eligible

-------------------------) there is no minimum percentage requirement to be eligible for JEE Main.

But yes,

To be eligible for NITs, IIITs, CFTIs one needs at least 75% marks in class 12th if belongs to General or OBC category  or at least 65% marks in class 12th if belongs to Sc or St category or needs to be in top 20 percentile of their board examination. This minimum percentage barrier in 12th was lifted off for the year 2021 i. e jee main 2021, if lifted again for jee main 2022 , then NTA will notify about it.

For detailed information about jee main eligibility criteria  go through our page, the link for which is provided below

https://engineering.careers360.com/articles/jee-main-eligibility-criteria

Thank you