Hello,

As per the notice on the official website the WBCS(Exe) etc.,2021 (Preliminary) is scheduled to be on 7th feb 2021(07/02/2021).You can copy paste and visit the below link to view it,

http://pscwbapplication.in/pdf20/ForthcomingExaminationwebsite02_07_20.pdf

But this is a tentative date provided for general guidance of the examinees, particularly to facilitate their preparations for academic or competitive examinations only and can change depending on various situations but it is better to be prepared keeping the above date in mind.