Hello Nithish Kumar. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

We, at Careers360, have prepared a comprehensive list of the question papers of WBJEE as is given here:

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

I would advice you to revise and practice at least two of the question papers provided daily. This will help all the topics of PCM to be stuck in your mind for a long time. 

Hope this helps you and all the best!