Hi

You can download JEE mains 2020 January session answer keys by visiting our page the link for the same is given below

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

It's good that you are going through previous year papers of JEE mains as t hese  papers will help you to understand the types of questions which are asked in exam, you will understand the important topics which are covered in the exam by practising them so that you can accordingly prepare for the exam , you will also get to know your preparation level .

Best of luck for your jee mains 2nd session examination.

Thank you