Dear student.

Greetings.

Yes. You are eligible to give JEE main examination 2019 upto 3 attempts. But, the application date for JEE main January is over. So, you can apply for JEE main examination April,2019.

Thank you. All the best.

Hello Swathi ,thanks for asking this question on this platform.if you have completed your diploma and you want to apply for JEE then you can apply for JEE main but after clearing that you have to give the exam of JEE advanced and only through your JEE advance score you will be alloted admission in diffrent IIT's .thanks

Students from science background in PCM Category with Minimum 50%aggregate marks in graduation or who are appearing 12th in Science stream are eligible

Diploma students not eligible for Jee Main.

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