Hello Saikat,
You can refer to the topics like :
for wbjee also if you wanna learn more regarding the important topics.Then please read this article:
https://www.simplylearnt.com/topic-weightage/WBJEE-Engineering
Hope it helps you
Best of Luck
Result | Application | Exam Pattern | Admit Card | Preparation Tips | Answer Key | Cutoff
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile