For physics, Study Pradeep's Physics by Gomber and Gojia and for Chemistry study Dinesh's Chemistry by P.N. Kapil. This will give you some valuable idea about solving MCQs quickly and efficiently. But for mathematics, I would say that u need to practice a lot from various books available in market. Also solve previous year questions of WBJEE. Concepts of question in WBJEE are some times repeated. Join a good coaching place, may it be an institute or a good private tutor who cares about students. And remember that besides of having some knowledge, the thing that you going to need the most is speed to solve questions. Best of luck. Never give up

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

First of all, note that WBJEE isn't a very difficult exam. If you prepare well for your JEE Mains exam, then this will surely be very easy for you.

Right now, I advice you to thoroughly prepare from the NCERT / CBSE topics of class 11 and 12. Also, please prepare from the past year question papers of Arihant Publications and also read the MTG magazines of Physics Today, Chemistry Today and Mathematics Today.

I would also like to direct your attention to these links for more information:

• https://admission.aglasem.com/wbjee-preparation/
• https://www.toppr.com/bytes/tips-master-wbjee/

Hope this helps you and all the best!