Hello aspirant,

Although it is not compulsory to select the language in JEE mains, the questions in the JEE mains exam centres will be asked in both English and Hindi Medium. So you do not need to worry about that. This year the JEE mains exam will be held in CBT mode (Computer based Test), so in the exam, all the questions will be available to you both in Hindi and English so that any student can give and understand the questions well.

Further, to know more about the JEE mains paper, exam dates, and any further information about it, you can follow the below mentioned link to know more : https://engineering.careers360.com/exams/jee-main

I hope that this will help.