hello,

The answer key of JEE Main is released by NTA in online mode only. Candidates can check the steps given below to know how to download the JEE Main answer key from the NTA website.

1. Go to the official website: jeemain.nta.nic.in

2. Click on the answer key link on the window

3. Enter the JEE Main application form number and date of birth

4. Finally, click on the submit button to view the answer on the screen

5. You can download the answer key as a PDF file.

the below link is the answer key without solutions JEE 2020 (Jan session) (by careers360)

https://engineering.careers360.com/articles/jee-main-answer-key

the below link is the detailed solution of  JEE 2020(Jan  session) (by resonance}

https://www.resonance.ac.in/answer-key-solutions/JEE-Main/2020/Answer-Key-Solution.aspx

Thank you