hi,

wbjee exam is mostly follows the 10+2 course syllabus of west bengal board of higher secondary education. so if you have studied well in 10+2 course you will be able to answer 70% of questions easily. follow tata mac graw books for practice problems, arihants publication books for solving mcqs. read atleast 10 hours daily and give mock test. it will be good if you give mock test in daily basis in any online plat form or in any coaching institute.

hope it would help.