hello aspirant

JEE main january session is going to be held in  2nd week of january (tentative). however as the april 2020 session got delayed many times  so IIT delhi professor ramgopal rao stated that it can be delayed by a month. also  he stated that is board exams also be postponed in the case school doesnt open till then due to pandamic so jee main can also be delayed for more than a month

however for boards there is no confirmed news that boards are delayed but if school will not open they can be delayed from march .

hope it helps