Hello Subhash

National Testing Agency (NTA) has released JEE Main 2020 application process for January session on September 3, 2019 (10.30 am) with a new registration process in place along with changes in the JEE Main 2020 exam pattern.

You can get full information on this link: https://engineering.careers360.com/exams/jee-main

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Hii aspirants 

Let me clear your doubt. 

This year also jee main is going to be held twice in a year one between 6 to 11 January and other between 3 to 9 april. 

Also this year Paper 1 of JEE Main exam will have 3 subjects - Physics, Chemistry and Mathematics. Each section will be given equal weightage with 20 MCQs and 5 numerical questions and total marks for JEE Main 2020 Paper 1 is yet to be announced.

 I hope my answer will help you out

Good luck