Hello.

JEE (Mains) 2021 is being conducted in four Sessions (February, March, April and May). The February and March Sessions are over. For the April Session, you can apply by going to the official website of The National Testing Agency (NTA): https://jeemain.nta.nic.in/ . The last date for submission of the online application form for JEE (Mains) April Session is 4th April 2021 till 11:50 pm. The JEE (Mains) April 2021 will be conducted from 27th April to 30th April 2021.

You can directly apply through the following link: https://testservices.nic.in/examSys21/root/Home.aspx?appFormId=101032111

I hope this helps.