Hello student,

Approximately 30 percent from the last 15-20 years questions gets repeated in the W.B.C.S. exam. But there is no such fixed rule for this. In both Preliminary and Mains exam the questions are repeated , specially in MCQ part. Even Prelims questions are repeated in Main exam and Main exam MCQs are repeated in Prelims exam.

So, you must solve the previous year question papers. This will help you. To know about the pattern and marking scheme of this paper, please visit the link given below.

https://www.google.com/amp/s/competition.careers360.com/articles/wbcs-exam-pattern/amp

Hope this helps.