Hi

You can download jee main sample papers/model papers at :-

https://engineering.careers360.com/articles/jee-main-sample-papers/amp

Solving these papers will be very beneficial for you, it will help you to :-

------------------) know the pattern  of the examination.

------------------)  know the kind / types  of questions which are there in your  examination.

------------------)  it will give you an idea of the difficulty level  of  the examination .

------------------)  you  will get to know the important   topics  which  are  covered and asked often in the exam , so  that  you  can  accordingly plan for your examination.

------------------) it  will  help  you  to check and gauge your level  for  preparation for the examination,

------------------) it will let you  know  your areas or the topics you are weak at so that you can work on them  and   can  perform  even better in your examination.

------------------)  will   help you to improve your time management skills so that in your actual examination you can solve questions with better speed and accuracy .

Good luck for your examination preparation.

I hope that you find this helpful.

Thank you