considering you are asking about JEE MAINS so the exam may happen in 2nd week of january 2021 . and here is the link to read more about JEE mains 2021 you can know more about syllabus and tentive dates from the link given below
https://learn.careers360.com/engineering/jee-main/
Hi! By Mains, I am assuming you mean JEE Mains. The exact dates of JEE Mains for the next year, 2021 have not been released yet, though the expected dates are expected to be similar, with JEE Mains 1 happening in January, and Mains 2 happening in April. As of now, there are no plans to cancel the January one becuase of the covid situation. The tentative dates and the schedule will be released by NTA on their website jeemain.nta.nic.in. You can check additional dates, details and information about JEE Mains on this link if you are interested further-
https://engineering.careers360.com/articles/jee-main-exam-dates
Hope this helped!
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