Hi Aspirant!

I am attaching a link below by which you can download sample papers / previous year question papers in the pdf format.

LINK:

https://engineering.careers360.com/articles/wbjee-sample-papers

No doubt, previous years jee mains/advanced papers will help you to understand the exam pattern adn time management. But to score good marks you need to focus on the weak topics or the topics/questions which you are not able to solve. If you imrpove these topics, surely you will score good marks. Do proper revision regularly and focus on the topics which wigh more such as heat and thermodynamics, modern physics, atomic structure, application of derivatives, conics, quadratic equations, etc. To know more, visit here:

https://engineering.careers360.com/articles/jee-main-preparation-tips

Thankyou!