Hello Dear,

there may be problem in your network/server so you can try after few hours:

You can follow this step to know your answer key:

Step 1: Visit the official website, i.e., jeemain.nta.nic.in. Step 2: On the homepage, click on the link that reads, 'Display question paper and answer key challenge February 2021 session'. Step 3: A new page will appear on the screen. Step 4: Enter the asked credentials. For more information you can visit the link below:

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

Good Luck