Entrance examinations for B.Tech like JEE MAIN, BITSAT, SRMJEE, VITEEE and other state level entrance examinations. Due to the global pandemic, most of the events of 2020 have been delayed. So in that way there might be a delay in releasing the applications of SRMJEE, VITEEE and BITSAT 2021. But it is expected that SRM Institute of Technology may release the application in the month of November 2020. BITSAT 2021 applications will be made available from Second Week of January 2021. And VITEEE 2021 applications were expected to release in the last week of October 2020. However this wan't released so there might be a delay in releasing the application. Registration for Jee Main 2021 examination may start from the Month of November 2020. However any specific dates have not yet announced by the authority. For furthur updates you may check the official website. You can also check this link. Once the application releases, you can apply from this link http://engineering.careers360.com/articles/jee-main-application-form
http://engineering.careers360.com/articles/srmjeee-application-form
http://engineering.careers360.com/articles/bitsat
http://engineering.careers360.com/articles/viteee-application-form