Hello Arghya!

You can get the question paper of JEE Mains January session 2019 in jeemain official website, careers360 etc. Here is the link to the website's download section. Kindly go through this link:

https://engineering.careers360.com/articles/jee-main-question-paper

If you want direct links to question papers along with their solutions,

Mathematics:

• https://static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-9-Evening-Maths-Solution.pdf
• https://static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-10-Evening-Maths-Solution.pdf
• https://static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-11-Evening-Maths-Solution.pdf

Chemistry:

• https:/ /static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-9-Evening-Chemistry-Solution.pdf
• https://static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-10-Evening-Chemistry-Solution.pdf
• https://static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-11-Evening-Chemistry-Solution.pdf

Physics:

• https://static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-11-Evening-Physics-Solution.pdf
• https://static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-10-Evening-Physics-Solution.pdf
• https://static.careers360.mobi/media/uploads/froala_editor/files/JEE-Main-2019-Allen-Jan-9-Evening-Physics-Solutions.pdf

There are several more genuine question papers and their proper answers.

Hope this will help you. Best of preperation

Thanks!