At this point in time, JEE Mains which was scheduled in April is being conducted in July as it was postponed due to Corona Pandemic. JEE Mains July will be held from July 18th to 23rd. And generally JEE Mains is held twice in a year. Once in January and again in April. Now NTA and MHRD have decided to revise and reduce the syllabus for JEE Mains. This might be released tentatively in the month of November. While the exact dates are not known yet, JEE Mains 2021 will be conducted in January and April hopefully. Please wait to hear either from MHRD or NTA regarding this.