What is the minimum marks to pass of BCS exam?

There is no Fixed mark for pass the BCS Exam Beacuse Each and Every time the pass mark is different in case of preli exam. But In Written Exam pass mark is different. Preli Pass Mark Depend on the question pattern. If question is hard than the pass mark is minimum around 80-90 approximately, but question paper is minimum level than pass mark will be 100-120 approximatley. This value is historical based, so don't rely fully on it, it may change every time. Thanks